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JEE Advanced2009PhysicsElectromagnetic InductionActual

The figure shows certain wire segments joined together to form a coplanar loop. The loop is placed in a perpendicular magnetic field in the direction going into the plane of the figure. The magnitude of the field increases with time. I₁ and I₂ are the currents in the segments a b and c d . Then,

Options

  1. AI₁>I₂
  2. BI₁ < I₂
  3. CI₁ is in the direction ba and I₂ is in the direction c d
  4. DI₁ is in the direction a b and I₂ is in the direction d c

Correct answer

D. I₁ is in the direction a b and I₂ is in the direction d c

Step-by-step solution

Cross magnetic field passing from the closed loop is increasing. Therefore, from Lenz's law induced current will product dot magnetic field. Hence, induced current is anticlockwise.

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