A bar magnet is pushed into a coil as shown in the figure below.

      

A bar magnet is pushed into a coil as shown in the figure below.
pic6920191510.png
Explain what happens to the pointer of the galvanometer when the magnet is:
(i) Moved into the coil rapidly?
(ii) Remains stationary inside the coil?

  

Answers


sharon
(i) The pointer deflects to the left and then goes back to rest position (zero). Changing magnetic flux links the coil inducing an e.m.f which causes current to flow making the pointer to deflect.
(ii) No deflection. There is change in magnetic flux, no induced e.m.f and hence no current.
sharon kalunda answered the question on September 6, 2019 at 12:12


Next: An electric kettle is rated at 1.8 kW, 240 V. Explain the choice of the safest fuse for the kettle. (the available fuses are 5...
Previous: A transformer has 200 turns in the primary coil and 1000 turns in the secondary coil. The primary coil is connected to an a.c source...

View More Physics Questions and Answers | Return to Questions Index


Exams With Marking Schemes

Related Questions