MHT CET 2023 Physics question
The self induction (L) produced by solenoid of length ' ' having 'N' number of turns & cross sectional are 'A' is given by the formula
( = magnetic flux, = permeability of vacuum)
Answer: (C)
Solution
The field inside a long solenoid is . The flux through one turn is , and the total flux linkage is . By definition , so , option (c). Option (a) $L =
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