When the electric bulb is connected to a cell through a switch, as shown in the figure and the switch is moved to the ON position, then the bulb does not glow. The reason/s for this is/are,

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The cell used may be discharged.

The bulb may be fused.

The wire may be broken from the inside.

All of the above.

answer is D.

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Detailed Solution

From the figure, the bulb will not glow even in the turned ON position because the cell may be damaged, the bulb may be fused, or the inside wire may be broken.
A bulb is a device which emits light when the current electricity is supplied through it. The electric bulb may not work because of a discharged cell, fused bulb, broken wires or loose connection. These are a few reasons why the bulb does not glow even the circuit is connected.

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