IMG_20190 The magnetic flux of 500 micro Wb per turn passing
through a 200 turn coil is reversed in 20 x 10-3
seconds. The average e.m.f. induced in the coil in 
volt is
 

Answers (5)
S safeer

e=-\frac{d\phi}{dt}

change in flux and time is given

S safeer

change in flux=(500 - (-500))=1000

N=200

t=20*10^(-3)

substitute this 

e=-N\frac{d\phi}{dt}=-200\frac{1000}{20\times10^{-3}}

formula plss

 

ans is 10wb

 

what"s the ans

 

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