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Most Important Selected Qs for JEE AdvancedPhysicsCurrent Electricity

Paragraph: A circuit is shown below. Question: If B is an inductor of inductance L, A an ideal battery of voltage V and C an ideal battery of voltage 2 V each connected so that the anode is facing left, what is voltage across B as soon as the circuit is connected:

Options

  1. AV 2
  2. BV
  3. C3 ~V 2
  4. D0

Correct answer

C. 3 ~V 2

Step-by-step solution

i = V 2 R at t=0 inductor is open circuit i= V 2 R p.d. V - V 2 = 3 ~V 2

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