ElectroMagnetic InductionHard

Question

The flux linked with a coil at any instant ′t′ is given by
      φ = 10t2 - 50t + 250
The induced emf at t = 3 s is

Options

A.190 V
B.-190 V
C.-10 V
D.10 V

Solution

e = - = - (20 t - 50) = - 10 volt

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