1.

What happens to the other bulbs in a series circuit if one bulb blows off

Answer» The circuit will break . No current will flow
In series combination if one bulb get diffuse then other bulb will not blow it is the disadvantage of series combination.
The bulb gets fused and hence the filament of the bulb breaks so the circuit is broken and current does not flow in the citcuit.As a result all bulbs will stop to glow


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