Question

d) If the bulbs in both the circuits shown in Fig. 2 and Fig. 3 are replaced with an open
switch, will the circuits be open or closed circuits?
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Answer 1

Q. If the bulbs in both the circuits shown in Fig. 2 and Fig. 3 are

replaced with an openswitch, will the circuits be open or closed circuits?

Ans :- No, none of the bulbs will glow when the switch is the off position as the circuit won't be completed when the

switch will be in the off state.

II) All the bulbs will glow at once because all the bulbs are connected with the same battery and they are being

controlled by the same switch.

hope it's help