Question

When two bulbs are connected in parallel and one bulb blows out, what happens to the other bulb?

Answer 1

If one bulb blows out, it acts as an open circuit. Current does not flow in that branch but it continues to flow in the other branch of the parallel circuit. Hence the other bulb continues to glow. Also, the battery power across other bulb remains the same due to which power delivered to it remains the same. So it continues to glow with the same brightness.