Question

When number of turns in a coil is tripled without any change in length of coil its self inductance becomes?

Answer 1

ANSWER:-

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L = inductance is proportional to the number of turns per unit length.

B = μ₀ n i

Emf = - dФ/dt = - d (B*A)/ dt = - L di/dt

L = μ₀ n A

So self inductance becomes three

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