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Q.

Is it true an open circuit is said to open when the current does not flow through the circuit and the bulb does not glow?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement isTrue.
An open circuit is an electric circuit in which the current does not flow because the bridge is removed between the positive and negative terminals of the battery, leaving a path break between the two terminals. Thus, the bulb will not glow. Here, the bulb is used as a tester in the circuit to check whether current is flowing in the circuit.
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Is it true an open circuit is said to open when the current does not flow through the circuit and the bulb does not glow?