MHT CET 2024 Physics question

The magnetic induction due to an ideal solenoid is independent of

(A)total number of turns of the wire
(B)length of the solenoid
(C)radius of the wireCorrect
(D)current carried by the wire

Answer: (C)

Solution

Inside an ideal (long) solenoid the field is uniform and given by , where is the total number of turns, the length and the current. The expression contains , and , so depends

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Question ID VK-094978