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Q.

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

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a

The other bulb stops glowing.

b

The other bulb glows with increased brightness.

c

The other bulb blows out as well.

d

The other bulb continues to glow with the same brightness.

answer is B.

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Detailed Solution

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  • In a parallel combination, even if one of the bulbs blows out, the other bulbs will continue to glow as electricity still has a closed circuit to flow.
  •  The voltage across the other bulb stays the same, which means that the power given to it stays the same, and it keeps glowing with the same brightness.
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