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In the set up in Figure 19, the magnet is moved towards the coil and stopped when inside the coil.

      

In the set up in Figure 19, the magnet is moved towards the coil and stopped when inside the coil.
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It is observed that the galvanometer deflects to one side and then goes back to zero. Explain this observation.

  

Answers


John
When the magnet is moving into the coil there is change in magnetic field flux hence an e.m.f is induced causing the galvanometer to deflect. When the magnet stops inside the coil there is no change in magnetic field flux hence no e.m.f. is induced causing the pointer to go back to zero.
johnmulu answered the question on June 5, 2017 at 11:25


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