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CBSE Class 12-science Answered

The magnetic flux linked with the circuit changes from 8×10-3 Wb to 4×10-3 Wb in 0.01 second. Calculate the emf induced in the circuit.
Asked by Topperlearning User | 06 Jul, 2015, 03:43: PM
answered-by-expert Expert Answer

Given:

Φ1= 8×10-3 Wb

Φ2= 4×10-3 Wb

t = 0.01 sec.

begin mathsize 12px style straight epsilon equals negative fraction numerator open parentheses straight ϕ subscript 2 minus straight ϕ subscript 2 close parentheses over denominator straight t end fraction equals negative fraction numerator open parentheses 4 cross times 10 to the power of negative 3 end exponent minus 8 cross times 10 to the power of negative 3 end exponent close parentheses over denominator 0.01 end fraction equals fraction numerator open parentheses negative 4 cross times 10 to the power of negative 3 end exponent close parentheses over denominator 0.01 end fraction
straight epsilon equals 0.4 space straight V end style

 

Answered by | 06 Jul, 2015, 05:43: PM
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