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JEE Main202116 Mar 2021Evening ShiftPhysicsElectromagnetic InductionActual

The magnetic field in a region is given by B → = B 0 x a k ^ . A square loop of side d is placed with its edges along the x and y axes. The loop is moved with a constant velocity v → = v 0 i ^ . The emf induced in the loop is :

Options

  1. AB 0 v 0 2   d 2 a
  2. BB 0 v 0 d 2 a
  3. CB 0 v 0 d 2 a
  4. DB 0 v 0 d 2 2 a

Correct answer

C. B 0 v 0 d 2 a

Step-by-step solution

E 1 = B 0 x + d a v 0 d E 2 = B 0 x a v 0   d E net = E 1 - E 2 E net = B 0 v 0 d 2 a

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