a coil is an area 2n^2 placed in a magnetic field which changes from 4wb/m^2 to 8wb/m^2 in time 2 second. find induced emf in the coil.
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Answer:
4 volt
Explanation:
Induced EMF is
ε = nAdB/dt
= 1 × 2 m² × (8 Wb/m² - 4 Wb/m²)/(2 s)
= 4 Wb/s
= 4 volt
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