An electric bulb is connected to a cell through a switch as shown in the figure. When the switch is brought in ‘ON’ position, the bulb does not glow. What could be the possible reason/s for it? Mention any two of them.
Fig. \( 12.7 \)
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Solution
There could be some reason why the bulb does not glow:
The cell or the power supply is used. There is no charge inside it to give a continuous flow of electricity.
The filament is destroyed due to the production of extensive. The filament is the main component of the bulb to glow. If the tungsten filament is a highly resistive matter when the current passes through it due to heat production it becomes glow.
If there is any loose connection between the circuit, then the can't glow.
If one of the circuit components especially the connector wire is broken then the bulb can't glow.
