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JEE Main2007PhysicsElectromagnetic InductionActual

An ideal coil of 10 H is connected in series with a resistance of 5 and a battery of 5 ~V . 2 second after the connection is made the current flowing in amperes in the circuit is

Options

  1. A(1- e )
  2. Be
  3. Ce ⁻¹
  4. D(1- e ⁻¹ )

Correct answer

D. (1- e ⁻¹ )

Step-by-step solution

i = i ₀ (1- e ^ Rt L )= (1- e ⁻¹ )

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