Question
An electric bulb only glows when the circuit is closed.
Answer: Option A
:
A
Electric current can only flow when there is a closed path. The flow of electrons through the filament of a bulb generates heat and light. Hence, an electric bulb glows only when the circuit is closed.
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:
A
Electric current can only flow when there is a closed path. The flow of electrons through the filament of a bulb generates heat and light. Hence, an electric bulb glows only when the circuit is closed.
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