The coefficient of mutual inductance, when magnetic flux changes by 2 × 10^ -2 ~Wb and current changes by 0.01 ~A is

Correct answer: A. 2 H Change in magnetic flux (φ)=2 × 10^ -2 ~Wb and change in current (I)=0.01 ~A . Change in magnetic flux, φ=2 × 10^ -2 =M I =M × 0.01 or M= 2 × 10^ -2 0.01 = 2 H ( where M= coefficient of mutual inductance).

AIIMS 2002

Exam: AIIMS
Year: 2002
Subject: Physics
Chapter: Electromagnetic Induction

AIIMS 2002 · Physics · Electromagnetic Induction

The coefficient of mutual inductance, when magnetic flux changes by...

The coefficient of mutual inductance, when magnetic flux changes by

2 \times 10^{-2} \mathrm{~Wb}

and current changes by

0.01 \mathrm{~A}

Options

A $2 \mathrm{H}$
B $4 \mathrm{H}$
C $3 \mathrm{H}$
D $8 \mathrm{H}$ .

Correct answer

A. $2 \mathrm{H}$

Step-by-step solution

Change in magnetic flux

(\phi)=2 \times 10^{-2} \mathrm{~Wb}

and change in current

(I)=0.01 \mathrm{~A}

. Change in magnetic flux,

\phi=2 \times 10^{-2}=M I

\times

0.01 \quad

\text{ or }

\frac{2 \times 10^{-2}}{0.01}=

\mathrm{H} (

where

M=

coefficient of mutual inductance).

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