First slide
Faraday's law of Electromagnetic induction
Question

A coil having 500 square loops each of side 10 cm is placed normal to a magnetic field which increases at a rate of 1 T/s. The induced emf in volt is :

Moderate
Solution

Total area = 500X 0.01 = 5  

total flux =Φ=5B

dϕdt= 5dBdt=5

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