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Q.

[27]
Is it true if the bulb is not glowing in a circuit, it means switch may be in open state?

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a

True

b

False

answer is A.

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Detailed Solution

The above statement is True.
We know an electric circuit is said to be open when the current does not flow through the circuit. Current can only flow in a circuit if it finds a continuous path. The possible reasons why the bulb in a circuit does not glow can be, (i) the switch is in an open state, (ii) there is a break in the connecting wires or loose connections and (iii) the filament of the bulb is broken.
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