Is it true that the bulb glows in an open circuit?

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True

False

answer is B.

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Detailed Solution

The above statement is False.
Because the current is flowing, the bulb lights up in a complete circuit. A sufficient current flow is required for a bulb to glow. When a current is passed through the filament, it heats up and glows, emitting heat and light. However, if the loop is open, energy cannot flow through it, and the lightbulb will stop burning. The circuit is considered closed when the key or switch is turned off, indicating that current flows through it (or on). An open circuit implies no current flow since the key or switch is in the open position (or off). As a result, the bulb will glow once the circuit is completed.
The correct statement would be that a bulb glows only in a closed circuit.

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