1. Tardigrade
  2. Question
  3. Physics
  4. A copper plate is allowed to swing like a simple pendulum between the pole pieces of a strong magnet (as shown in figure). It is found that the motion is .... and in a little while the plate comes to halt in the magnetic field. We can explain this phenomenon on the basis of ldots . .

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. A copper plate is allowed to swing like a simple pendulum between the pole pieces of a strong magnet (as shown in figure). It is found that the motion is .... and in a little while the plate comes to halt in the magnetic field. We can explain this phenomenon on the basis of $\ldots . .$Physics Question Image

Electromagnetic Induction

Solution:

Electromagnetic Induction A copper plate is allowed to swing like a simple pendulum between the pole pieces of a strong magnet.
It is found that the motion is damped and in a little while the plate comes to a halt in the magnetic field. We can explain this phenomenon on the basis of electromagnetic induction. Magnetic flux associated with the plate keeps on changing as the plate moves in and out of the region between magnetic poles. The flux change induces eddy currents in the plate. Directions of eddy currents are opposite when the plate swings into the region between the poles and when it swings out of the region. Heat is produced in copper plate, copper plate moves slower.