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A very long solenoid of length L has n l...

A very long solenoid of length L has n layers. There are N turns in each layer. Diameter of the solenoid is D and it carries current I. The magnetic field at the centre of the solenoid is ______

A

directly proportional to D.

B

inversely proportional to D.

C

independent of D.

D

directly proportional to L.

Text Solution

Verified by Experts

The correct Answer is:
C
Magnetic field produced inside solenoid as per equation B = `(mu_(0)NI)/L`.
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