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CBSE Class 12-science Answered

Magnetic flux in a coil changes from 13 × 10-3 Wb to 5 × 10-3 Wb in 0.02 sec. Find the induced emf.
Asked by Topperlearning User | 07 Jul, 2015, 10:16: AM
answered-by-expert Expert Answer

Induced e.m.f.,

begin mathsize 12px style straight e equals fraction numerator straight ϕ subscript 2 minus straight ϕ subscript 1 over denominator straight t end fraction equals fraction numerator open parentheses 13 minus 5 close parentheses cross times 10 to the power of negative 3 end exponent over denominator 0.02 end fraction
straight e equals 0.4 space straight V end style

Answered by | 07 Jul, 2015, 12:16: PM
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