First slide

Solenoid

Question

Statement 1: The magnetic field at the ends of a very long current carrying solenoid is half of that at the centre.
Statement 2: If the solenoid is sufficiently long, the field within it is uniform.

Easy

A

Both statements 1 and 2 are correct
B

Statement 1 is correct statement 2 is incorrect
C

Statement 1 is incorrect statement 2 is correct
D

Both statements 1 and 2 are incorrect

Solution

For a solenoid $B_{end} = \frac{1}{2} B_{in};$ also for a long solenoid magnetic field is uniform within it .

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