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A circular coil of cross section area 200 centimetre square  and 20 turns is rotated about the vertical diameter with angular speed of 50 rad/s in a uniform magnetic field of magnitude 3*10-2T(10 to the power -2).calculate the maximum value of current in the coil

Asked by Priyanka 15th November 2017, 3:52 PM
Answered by Expert
Answer:
A circular coil of cross section area 200 centimetre square  and 20 turns is rotated about the vertical diameter with angular speed of 50 rad/s in a uniform magnetic field of magnitude 3*10-2T(10 to the power -2).calculate the maximum value of current in the coil
 
begin mathsize 16px style 200 c m squared space equals space 200 space x 10 to the power of negative 4 end exponent m squared

e m f equals N A B omega
equals 20 x 200 x 10 to the power of negative 4 end exponent x 3 x 10 to the power of negative 2 end exponent x 50
equals 4 x 10 cubed x 50 x 3 x 10 to the power of negative 2 end exponent x 10 to the power of negative 4 end exponent
equals 0.6 space v

I equals e over R space A m p e r e
equals fraction numerator 0.6 space over denominator R end fraction space A m p e r e

V a l u e space o f space r e s i s tan c e space s h o u l d space b e space g i v e n space end style
Answered by Expert 6th December 2017, 5:11 PM
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