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JEE Advanced 2009Paper 1
Exam
JEE Advanced
Year
2009
Paper
Paper 1
Subject
Physics
Chapter
Electromagnetic Induction

JEE Advanced 2009 · Paper 1 · Physics · Electromagnetic Induction

The figure shows certain wire segments joined together to form a...

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. I1I_1 and I2I_2 are the currents in the segments aba b and cdc d. Then, The figure shows certain wire segments joined together to form a coplanar loop. The loop is placed in a perpendicular

Options

  1. AI1>I2I_1>I_2
  2. BI1<I2I_1 < I_2
  3. CI1I_1 is in the direction ba and I2I_2 is in the direction cdc d
  4. DI1I_1 is in the direction aba b and I2I_2 is in the direction dcd c

Correct answer

D. I1I_1 is in the direction aba b and I2I_2 is in the direction dcd c

Step-by-step solution

Cross ⊗\otimes magnetic field passing from the closed loop is increasing. Therefore, from Lenz's law induced current will product dot⁡⊙\operatorname{dot} \odot magnetic field. Hence, induced current is anticlockwise.
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