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

Electrical and Electronic Engineering (EEE) : Series Circuits - Quiz(MCQ)

The other bulb also burns out

The other bulb stops glowing

The other bulb glows with increased brightness

The other bulb continues to glow with the same brightness

Correct Answer : Option (B) : The other bulb stops glowing

Explanation : Since the two bulbs are connected in series, if the first bulb burns out there is a break in the circuit and hence the second bulb does not glow.

Recently Updated in Series Circuits Questions

If 5 V and 16 V power supplies are connected in series-opposing, what is the total voltage?

11 V

16 V

21 V

80 V

Correct Answer : 11 V

What happens to the current in the series circuit if the resistance is doubled?

It becomes zero

It becomes double its original value

It becomes half its original value

It becomes infinity

Correct Answer : It becomes half its original value

Explanation : I=V/R. If R becomes 2R then I becomes I/2 i.e. half of its original value.

What is the voltage measured across a series short?

Zero

Infinite

The value of the source voltage

None of the above

Correct Answer : Zero

Explanation : A short is just a wire. The potential difference between two points of a wire is zero hence the voltage measured is equal to zero.

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