a) What are the changes we can see when the circuit becomes closed ?
b) Mention the effect of electric current that can be observed when the circuit is closed.
c) Label A, B, C and D.
Q.31. Study the diagram and give answers for the following questions

Dear student,
(a) when the switch is closed, current starts flowing in the circuit. The bulb will glow and the magnetic compass will show deflection.
(b) ​The bulb will glow and the magnetic compass will show deflection.
(c) A- Bulb
      B- Key
       C - Connecting wire
      D- Cell

Regards