A) The magnetic field inside the solenoid is less than that of outside
B) The magnetic field inside an ideal solenoid is not at all uniform
C) The magnetic field at the cenre, inside an ideal solenoid is almost twice that at the ends
D) The magnetic field at the centre, inside an ideal solenoid is almost half of that at the ends
Correct Answer: C
Solution :
Magnetic field at one end of a solenoid carrying current is \[B=\frac{{{\mu }_{0}}nI}{2}\] Magnetic field inside the solenoid is uniform and is given by \[{{B}_{c}}={{\mu }_{0}}nI\]
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