-
question_answer1)
Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: |
Assertion [A]: Magnetic field lines always form closed loops. |
Reason (R): Moving charges or currents produce a magnetic field. |
A)
Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A] done
clear
B)
Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A] done
clear
C)
Assertion [A] is true but Reason (R) is false done
clear
D)
Assertion [A] is false and Reason (R) is also false done
clear
View Solution play_arrow
-
question_answer2)
Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: |
Assertion [A]: If an electron is not deflected while passing through a certain region of space, then only possibility is that there is no magnetic region. |
Reason (R): Force is inversely proportional to the magnetic field applied. |
A)
Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A] done
clear
B)
Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A] done
clear
C)
Assertion [A] is true but Reason (R) is false done
clear
D)
Assertion [A] is false and Reason (R) is also false done
clear
View Solution play_arrow
-
question_answer3)
Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: |
Assertion [A]: Magnetic field interacts with a moving charge and not with a stationary charge. |
Reason (R): A moving charge produces a magnetic field. |
A)
Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A] done
clear
B)
Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A] done
clear
C)
Assertion [A] is true but Reason (R) is false done
clear
D)
Assertion [A] is false and Reason (R) is also false done
clear
View Solution play_arrow
-
question_answer4)
Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: Assertion [A]: An electron and proton enters a magnetic field with equal velocities, then, the force experienced by proton will be more than electron. Reason (R): The mass of proton is 1999 times more than the mass of electron.
A)
Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A] done
clear
B)
Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A] done
clear
C)
Assertion [A] is true but Reason (R) is false done
clear
D)
Assertion [A] is false and Reason (R) is also false done
clear
View Solution play_arrow
-
question_answer5)
Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: Assertion [A]: Magnetic lines of force form continuous closed loops. Reason (R: Magnetic poles always occur in pairs as north pole and south pole.
A)
Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A] done
clear
B)
Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A] done
clear
C)
Assertion [A] is true but Reason (R) is false done
clear
D)
Assertion [A] is false and Reason (R) is also false done
clear
View Solution play_arrow
-
question_answer6)
Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: |
Assertion [A]: If a charged particle is moving on a circular path in a perpendicular magnetic field, the momentum of the particle is not changing. |
Reason (R): Velocity of the particle in not changing in the magnetic field. |
A)
Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A] done
clear
B)
Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A] done
clear
C)
Assertion [A] is true but Reason (R) is false done
clear
D)
Assertion [A] is false and Reason (R) is also false done
clear
View Solution play_arrow
-
question_answer7)
Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: |
Assertion [A]: When force is zero, the charged particle follows linear path. |
Reason (R): A charged particle enters in a uniform magnetic field, whose velocity makes an angle \[\theta \] with magneticd field will cover a linear path. |
A)
Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A] done
clear
B)
Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A] done
clear
C)
Assertion [A] is true but Reason (R) is false done
clear
D)
Assertion [A] is false and Reason (R) is also false done
clear
View Solution play_arrow
-
question_answer8)
Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: |
Assertion [A]: When a charged particle moves perpendicular to magnetic field then its kinetic energy and momentum gets affected. |
Reason (R): Force changes velocity of charged particle. |
A)
Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A] done
clear
B)
Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A] done
clear
C)
Assertion [A] is true but Reason (R) is false done
clear
D)
Assertion [A] is false and Reason (R) is also false done
clear
View Solution play_arrow
-
question_answer9)
Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: |
Assertion [A]: The energy of charged particle moving in a uniform magnetic field does not change. |
Reason (R): Work done by magnetic field on the charge is zero. |
A)
Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A] done
clear
B)
Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A] done
clear
C)
Assertion [A] is true but Reason (R) is false done
clear
D)
Assertion [A] is false and Reason (R) is also false done
clear
View Solution play_arrow
-
question_answer10)
Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: |
Assertion [A]: The kinetic energy of a charged particle moving in a uniform magnetic field does not change. |
Reason (R): In a uniform magnetic field no force acts on the charge particle. |
A)
Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A] done
clear
B)
Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A] done
clear
C)
Assertion [A] is true but Reason (R) is false done
clear
D)
Assertion [A] is false and Reason (R) is also false done
clear
View Solution play_arrow
-
question_answer11)
Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: |
Assertion [A]: When the observation point lies along the length of the current element, magnetic field is zero. |
Reason (R): Magnetic field close to current element is zero. |
A)
Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A] done
clear
B)
Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A] done
clear
C)
Assertion [A] is true but Reason (R) is false done
clear
D)
Assertion [A] is false and Reason (R) is also false done
clear
View Solution play_arrow
-
question_answer12)
Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: |
Assertion [A]: A direct current flows through a metallic rod, produce magnetic field only outside the rod. |
Reason (R): There is no flow of charge carriers inside the rod. |
A)
Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A] done
clear
B)
Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A] done
clear
C)
Assertion [A] is true but Reason (R) is false done
clear
D)
Assertion [A] is false and Reason (R) is also false done
clear
View Solution play_arrow
-
question_answer13)
Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: |
Assertion [A]: The magnetic field intensity at the centre of a circular coil carrying current changes, if the current through the coil is doubled. |
Reason (R): The magnetic field intensity is dependent on current in conductor. |
A)
Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A] done
clear
B)
Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A] done
clear
C)
Assertion [A] is true but Reason (R) is false done
clear
D)
Assertion [A] is false and Reason (R) is also false done
clear
View Solution play_arrow
-
question_answer14)
Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: |
Assertion [A]: A circular loop carrying current lies in XY plane with its center at origin having a magnetic flux in negative Z-axis. |
Reason (R): Magnetic flux direction is independent of the direction of current in the conductor. |
A)
Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A] done
clear
B)
Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A] done
clear
C)
Assertion [A] is true but Reason (R) is false done
clear
D)
Assertion [A] is false and Reason (R) is also false done
clear
View Solution play_arrow
-
question_answer15)
Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: |
Assertion [A]: Ampere's circuital law holds for steady currents which do not fluctuate with time. |
Reason (R): Ampere's circuital Law is similar to that of Biot-savart's law. |
A)
Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A] done
clear
B)
Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A] done
clear
C)
Assertion [A] is true but Reason (R) is false done
clear
D)
Assertion [A] is false and Reason (R) is also false done
clear
View Solution play_arrow
-
question_answer16)
Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: |
Assertion [A]: A current / flows along the Length of an infinitely long straight and thin walled pipe. Then the magnetic field at any point inside the pipe is zero. |
Reason (R): \[\oint{\overrightarrow{B}.d}\,\overrightarrow{l}={{\mu }_{0}}l\] |
A)
Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A] done
clear
B)
Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A] done
clear
C)
Assertion [A] is true but Reason (R) is false done
clear
D)
Assertion [A] is false and Reason (R) is also false done
clear
View Solution play_arrow
-
question_answer17)
Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: |
Assertion [A]: Magnetic field due to current carrying solenoid is independent of its length and cross-sectional area. |
Reason (R): The magnetic field inside the solenoid is uniform. |
A)
Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A] done
clear
B)
Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A] done
clear
C)
Assertion [A] is true but Reason (R) is false done
clear
D)
Assertion [A] is false and Reason (R) is also false done
clear
View Solution play_arrow
-
question_answer18)
Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: |
Assertion [A]: Magnetic field lines can be entirely confined within the core of a toroid, but not within a straight solenoid. |
Reason (R): The magnetic field inside the solenoid is uniform. |
A)
Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A] done
clear
B)
Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A] done
clear
C)
Assertion [A] is true but Reason (R) is false done
clear
D)
Assertion [A] is false and Reason (R) is also false done
clear
View Solution play_arrow
-
question_answer19)
Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: |
Assertion [A]: The magnetic field at the ends of a very long current carrying solenoid is half of that at the centre. |
Reason (R): If the solenoid is sufficiently long, the field within it is uniform. |
A)
Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A] done
clear
B)
Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A] done
clear
C)
Assertion [A] is true but Reason (R) is false done
clear
D)
Assertion [A] is false and Reason (R) is also false done
clear
View Solution play_arrow
-
question_answer20)
Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: |
Assertion [A]: If two Long wires, hanging freely are connected to a battery in series, they come closer to each other. |
Reason (R): Force of attraction acts between the two wires carrying current. |
A)
Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A] done
clear
B)
Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A] done
clear
C)
Assertion [A] is true but Reason (R) is false done
clear
D)
Assertion [A] is false and Reason (R) is also false done
clear
View Solution play_arrow
-
question_answer21)
Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: |
Assertion [A]: When current is represented by a straight line, the magnetic field will be circular. |
Reason (R): According to Fleming's left hand rule, direction of force is parallel to the magnetic field. |
A)
Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A] done
clear
B)
Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A] done
clear
C)
Assertion [A] is true but Reason (R) is false done
clear
D)
Assertion [A] is false and Reason (R) is also false done
clear
View Solution play_arrow
-
question_answer22)
Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: |
Assertion [A]: Two parallel conducting wires carrying currents in opposite direction, come close to each other. |
Reason (R): Parallel currents repel and anti-parallel currents attract. |
A)
Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A] done
clear
B)
Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A] done
clear
C)
Assertion [A] is true but Reason (R) is false done
clear
D)
Assertion [A] is false and Reason (R) is also false done
clear
View Solution play_arrow
-
question_answer23)
Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: |
Assertion [A]: When two long parallel wires, hanging freely are connected in parallel to a battery, they come closer to each other. |
Reason (R): Wires carrying current in opposite direction repel each other. |
A)
Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A] done
clear
B)
Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A] done
clear
C)
Assertion [A] is true but Reason (R) is false done
clear
D)
Assertion [A] is false and Reason (R) is also false done
clear
View Solution play_arrow
-
question_answer24)
Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: |
Assertion [A]: Torque on the coil is the maximum, when coil is suspended in a radial magnetic field. |
Reason (R): The torque tends to rotate the coil on its own axis. |
A)
Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A] done
clear
B)
Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A] done
clear
C)
Assertion [A] is true but Reason (R) is false done
clear
D)
Assertion [A] is false and Reason (R) is also false done
clear
View Solution play_arrow
-
question_answer25)
Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: |
Assertion [A]: Magnetic moment is measured in joule/tesla or amp \[{{m}^{2}}\]. |
Reason (R): Joule/tesla is equivalent to amp \[{{m}^{2}}\]. |
A)
Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A] done
clear
B)
Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A] done
clear
C)
Assertion [A] is true but Reason (R) is false done
clear
D)
Assertion [A] is false and Reason (R) is also false done
clear
View Solution play_arrow
-
question_answer26)
Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: |
Assertion [A]: The net magnetic force on a current carrying loop in a uniform magnetic field is zero but torque may or may not be zero. |
Reason (R): Torque on a current carrying coil in a magnetic field is given by \[\overrightarrow{\tau }=nl(\overrightarrow{A}\times \overrightarrow{B})\]. |
A)
Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A] done
clear
B)
Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A] done
clear
C)
Assertion [A] is true but Reason (R) is false done
clear
D)
Assertion [A] is false and Reason (R) is also false done
clear
View Solution play_arrow