Question:medium

A short solenoid of length 4 cm, radius 2 cm and 100 turns is placed inside and on the axis of a long solenoid of length 80 cm and 1500 turns. A current of 3 A flows through the short solenoid. The mutual inductance of two solenoids is

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For coaxial solenoids: \(M = \mu_0 \dfrac{N_1}{L_1} N_2 A\), where \(A\) and \(N_2\) belong to the shorter (inner) solenoid.

Updated On: Apr 8, 2026

\(2.96 \times 10^{-4}\) H
\(5.3 \times 10^{-5}\) H
\(3.52 \times 10^{-3}\) H
\(8.3 \times 10^{-5}\) H

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The Correct Option is B

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Questions Asked in MET exam

If \(f(x) = \begin{cases} x, & 0 \le x \le 1 \\ 2x - 1, & 1<x \end{cases}\), then

MET - 2019
Continuity

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