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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]: When a bar magnet is freely suspended, it points in the north-south direction. |
Reason (R): The Earth behaves as a magnet with the magnetic field pointing approximately from the geographic south to north. |
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
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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]: Magnetic force between two short magnets, when they are co-axial follows inverse saquare law of distance. |
Reason (R): The magnetic forces between two poles do not follow inverse square law of distance. |
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
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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]: Gauss's law of magnetism is different from that for electrostatics. |
Reason (R): Isolated magnetic poles are not known to exist. |
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
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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]: Earth's magnetic field does not affect the working of a moving coil glavanometer. |
Reason (R): The Earth's magnetic field as quite weak as compared to magnetic field produces in the moving coil galvanometer. |
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
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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]: The magnetic field lines of the Earth resemble that of a magnetic dipole located at the centre of the Earth. |
Reason (R): The axis of the dipole coincide with the axis of rotation of the Earth. |
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
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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]: In water, value of magnetic field decreases. |
Reason (R): Water is a diamagnetic substance. |
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
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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 diamagnetic material is placed in a non-uniform magnetic field, it tends to move from stronger to the weaker part of the magnetic field. |
Reason (R): Diamagnetic materials possess strong magnetism. |
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
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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]: The ability of a material to permit the passage of magnetic lines of force through it is called magnetic permeability. |
Reason (R): For a perfect diamagnetic substance, permeability is always one. |
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
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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]: Magnetic moment of an atom is due to both, the orbital motion and spin motion of every electron. |
Reason (R): A charged particle 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
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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 Earth's magnetic field is due to iron present in its core. |
Reason (R): At a low temperature magnet losses its magnetic property or magnetism. |
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
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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]: The ends of a magnet suspended freely point out always along north south. |
Reason (R): Earth behaves as a huge magnet. |
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
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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 compass needle when placed on the magnetic north pole of the Earth rotates in vertical direction. |
Reason (R): The Earth has only horizontal component of its magnetic field at the north poles. |
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
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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]: At neutral point, a compass neddle point out in any arbitrary direction. |
Reason (R): Magnetic field of Earth is balanced by field due to magnets at the neutral points. |
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
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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]: 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
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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]: A clinic lines on the magnetic map represents lines of equal dip. |
Reason (R): When the horizontal and vertical components of the Earth's magnetic field are equal, the angle of dip is \[60{}^\circ \]. |
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
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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]: The true geographic north direction is found by using a compass needle. |
Reason (R): The magnetic meridian of the Earth is along the axis of rotation of the Earth. |
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
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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]: There is only one neutral point an a horizontal board when a magnet is held vertically on the board. |
Reason (R): At the neutral point the net magnetic field due to the magnetic field of the Earth 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
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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]: The poles of magnet cannot be separated by breaking into two pieces. |
Reason (R): The magnetic moment will be reduced to half when a magnet is broken into two equal pieces. |
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
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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]: Magnetic moment of an atom is due to both, the orbital motion and spin motion of every electron. |
Reason (R): A charged particle 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
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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]: Magnetism is relativistic. |
Reason (R): When we move along with the charge so that there is no motion relative to us, we find no magnetic field associated with the charge. |
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
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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 radius of circular loop carrying current is doubled, its magnetic moment becomes four times. |
Reason (R): Magnetic moment depends on area of the Loop. |
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
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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]: The Earth's magnetic field does not affect the working of a moving coil galvanometer. |
Reason (R): Earth's magnetic field is very weak. |
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