Electro Magnetic Induction And Alternating Currents Question 556

Question: The self inductance of a coil is L. Keeping the length and area same, the number of turns in the coil is increased to four times. The self inductance of the coil will now be [MP PMT 1997]

Options:

A) $ \frac{1}{4}L $

B) L

C) 4 L

D) 16 L

Show Answer

Answer:

Correct Answer: D

Solution:

$ L\propto N^{2} $



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