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BITSAT2020PhysicsElectromagnetic InductionActual

A conducting square loop of side L and resistance R moves in its plane with a uniform velocity v perpendicular to one of its side. A magnetic induction B constant in time and space, pointing perpendicular and into the plane of the loop exists everywhere. The current induced in the loop is

Options

  1. AB v R clockwise
  2. BB v R anticlockwise
  3. C2 ~B v R anticlockwise
  4. Dzero

Correct answer

D. zero

Step-by-step solution

Since the magnetic field is uniform the flux f through the square loop at any time t is constant, because array l f = B A = B L ²= constant =- d dt = zero array

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