KCET · Physics · Electromagnetic Induction
In the figure, a conducting ring of certain,resistance is falling towards a current carrying straight long conductor. The ring and conductor are in the same plane. Then, the
- A induced electric current is zero
- B induced electric current is anti-clockwise
- C induced electric current is clockwise
- D ring will come to rest
Answer & Solution
Correct Answer
(C) induced electric current is clockwise
Step-by-step Solution
Detailed explanation
Magnetic field around the current carrying straight long conductor.
\(B=\frac{\mu_0 I}{2 \pi r}\)
where, \(r\) is distance from the conductor. Hence, magnetic field increases on moving towards the conductor.
Since, metal ring is moving towards the conducting wire, hence flux linked with ring, increases continuously in the out of plane direction. Hence, the induced current produces a magnetic field into the plane of paper. Thus, induced current will produce in the clockwise direction.
\(B=\frac{\mu_0 I}{2 \pi r}\)
where, \(r\) is distance from the conductor. Hence, magnetic field increases on moving towards the conductor.
Since, metal ring is moving towards the conducting wire, hence flux linked with ring, increases continuously in the out of plane direction. Hence, the induced current produces a magnetic field into the plane of paper. Thus, induced current will produce in the clockwise direction.
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