Magnetic flux - in weber linked with a closed circuit of resistance 10 - varies with time t in second as - - 5t2 - 4t - 1- The induced electromotive force in the circuit at t - 0-2 second is

The correct option is D 2.0 V #981;=BA #981;=BA ...

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Byju's Answer

Standard X

Physics

Force on a Straight Current Carrying Conductor Placed in a Magnetic Field

Magnetic flux...

Question

Magnetic flux $ϕ$ (in weber) linked with a closed circuit of resistance $10 Ω$ varies with time t (in second) as $ϕ = 5 t^{2} - 4 t + 1$ . The induced electromotive force in the circuit at t = 0.2 second is

0.4 V

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-2.0 V

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2.0 V

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Solution

The correct option is D 2.0 V
ϕ=BA

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Magnetic flux ϕ (in weber) linked with a closed circuit of resistance 10Ω varies with time t (in second) as ϕ=5t2−4t+1. The induced electromotive force in the circuit at t = 0.2 second is

The correct option is D 2.0 Vϕ=BAϕ=BA

Magnetic flux $ϕ$ (in weber) linked with a closed circuit of resistance $10 Ω$ varies with time t (in second) as $ϕ = 5 t^{2} - 4 t + 1$ . The induced electromotive force in the circuit at t = 0.2 second is

The correct option is D 2.0 V
ϕ=BA