Question

in an electric circuit a battery and bulb have been connected and the battery consists of two cells of equal potential difference if the bulb is not glowing then which test will be performed in order to find out the reason for the world not glowing?

Answer 1

here is your answer



This would be a troubleshooting flow in order from the easiest and most obvious check to ones requiring test gear.

Visually check to make sure the batteries are connected properly; in series and not opposition. Series would be -+-+ so the voltage is additive. With a ++ or - - connection, resultant voltage will be zero.

Using a voltmeter, check voltage at bulb connection or socket. This will determine if power is available to the bulb.

If steps 1 & 2 are good, remove the bulb and check for resistance using an ohmmeter. Open or extremely high resistance indicates either an open bulb or a failure


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Answer 2

"The bulb in the circuit might not glow due to a number of reasons. Here are a few things to check out for in the circuit.

• Check whether the batteries are functional and provide the required voltage.

• Check for problems in the bulb.

• Check whether all the connections are properly made.

"