The current I in the straight conductor varies sinusoidally with time as shown. (A positive value of I is in the direction indicated). At time t1 the induced current in the rectangular loop is clockwise. What is the current in the rectangular loop at time t2 and time t3 respectively?
Correct answer: C. Clockwise; clockwise
- A. Zero; clockwise
- B. Zero; counterclockwise
- C. Clockwise; clockwise
- D. Clockwise; counterclockwise
Explanation
For t2, I is continuously decreasing, so the magnetic field in the downward direction and is decreasing, hence the direction of induced current will be clockwise. For t3, I is continuously increasing in the downward direction, so the magnetic field in the direction outside the plane of paper is increasing. So, again clockwise.
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