The mutual inductance between two coils is $0.09$ Henry. If the current in the primary coil changes from 0 to $20 \mathrm{~A}$ in $0.006 \mathrm{~s}$, the e.m.f. induced in the secondary coil at that instant is

JEE PHYSICS MCQ: ELECTRO MAGNETIC INDUCTION

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Application +4 | -1

The mutual inductance between two coils is

0.09

Henry. If the current in the primary coil changes from 0 to

20 \mathrm{~A}

0.006 \mathrm{~s}

, the e.m.f. induced in the secondary coil at that instant is

View answer and explanation

Correct option: D

300 \mathrm{~V}

Option D (

300 \mathrm{~V}

) is correct because it is the induced EMF calculated using the formula

\varepsilon = M \frac{\Delta I}{\Delta t}

Practice All Chapter MCQs →

R

n

i=i_0 \sin \omega t

N

4 \mathrm{sec}

0.1\,\,{m^2}

\mathrm{60}

\mathrm{0}\mathrm{.4}\,\,\mathrm{T}

\mathrm{100}

\mathrm{50}\,\,\mathrm{mH}

\mathrm{2 A}