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Class 10 Science Medium Mcq English Medium

A torch does not light up when its switch is off because:

Question
A torch does not light up when its switch is off because:
The battery is discharged
The circuit is open, so no current flows
The bulb resistance becomes infinite always
The current reverses direction
Answer
The circuit is open, so no current flows
Detailed Explanation
Turning the switch off breaks the conducting link, opening the circuit, so no current flows and the bulb does not glow.
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