The magnetic flux ϕ (in weber) linked with a closed circuit of resistance 8 Ω varies with time (in seconds) as ϕ = 5 t 2 − 36 t + 1 . The induced current in the circuit at t = 2 s is _______ A .

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Induced EMF is given by, ε = − d ϕ d t = 10 t − 36 Now, it is given that at t = 2 s , ε = 16 V . Therefore, i = ε R = 16 8 = 2 A

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