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  • A time varying current  I(t)   is flowing in inductive circuit of self inductance L

A time varying current  I(t) = I_0 \cos wt  is flowing in inductive circuit of self inductance L 

The emf  induced in circuit is 

Option: 1

LI_0 w \sin (wt)


Option: 2

LI_0 w \cos (wt)


Option: 3

LI_0 \sin (wt)


Option: 4

LI_0 \cos (wt)


Answers (1)

best_answer

As we have learned

Faraday Second Law of Induction emf -

\varepsilon = \frac{-d\phi }{dt}= -L\frac{dI}{dt}

-

 

 Self induced emf   \varepsilon = - \frac{d\phi }{dt }

\varepsilon = - L\frac{dI }{dt }

\varepsilon = - L\frac{d }{dt } (I_0 \cos wt)

\varepsilon = LI_0 w \sin (wt)

 

 

 

Posted by

Divya Prakash Singh

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