After passing the switch , torch does not glow , list different factors which could be responsible for it
Answers
Explanation:
The contacts are not connected as well as they appear.
The wires have been tied or clamped to the terminals without stripping off the insulation.
Optical fibre was used instead of metallic wire.
The bulb is dead (burnt out).
The battery is dead.
There is no voltage source in the circuit.
A switch in series is open (switched off).
Something in series is blocking most or all of the current because, for example,
it's defective/burnt out or
it's a capacitor and the voltage supply is DC.
Something in parallel is passing too much of the current, bypassing the bulb. For example:
an extra wire,
an inductor and the voltage is DC, or
the circuit is immersed in water or mercury.
The voltage is too low to light the bulb.
The bulb is really an LED and is wired backwards.
The bulb is a tulip bulb instead of a light bulb.
The bulb is glowing but your eyes are closed.