Practicing Success
Case : Read the passage and answer the question(s). When bulk pieces of conductors are subjected to changing magnetic flux, induced currents are produced in them. However, their flow patterns resemble swirling eddies in water. Consider a copper plate 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. |
What happens if you observe the system for a very long time? |
The copper plate keeps on swinging The copper plate begins to rotate The copper plate does not enter the magnetic field The copper plate comes to a halt. |
The copper plate comes to a halt. |
The plate comes to a halt due to energy losses due to eddy currents. |