Electromagnetic Induction
 

Electromagnetic Induction problem 10


An electromagnet is positioned close to a coil of wire.




The electromagnet is switched on, remains on for a short time, and is then switched off. Three statements about the pointer on the galvanometer during this sequence are given.


  • The pointer kicks to one side as the electromagnet is switched on.

  • The pointer records a steady non-zero value while the electromagnet remains switched on.

  • The pointer kicks to the other side as the electromagnet is switched off.


Which statements are correct?


  • 1 and 2 only

  • 1 and 3 only

  • 2 and 3 only

  • 1, 2 and 3


 

main author and content editor: Odafe Adjeke