You are using a tester with a light bulb to conduct an experiment to find out if a liquid is a conductor of electricity. But you observe that one of the liquids, which is supposed to be a conductor according to your textbook is not causing the light bulb to glow, even though you have checked all the connections, and the battery and bulb are in working condition. What could be the possible reason for this?
You are using a tester with a light bulb to conduct an experiment to find out if a liquid is a conductor of electricity. But you observe that one of the liquids, which is supposed to be a conductor according to your textbook is not causing the light bulb to glow, even though you have checked all the connections, and the battery and bulb are in working condition. What could be the possible reason for this?
The correct option is A Current through the circuit is too weak for the filament of the bulb to get sufficiently heated up and glow.
The filament of an electric bulb glows because of the heating effect of electric current. As the current passes through the bulb it heats the filament to a high temperature and it glows. So basically, greater the current, greater is the heat energy generated for the bulb to glow. If the current is too weak, the filament might not get heated up enough to glow.
Current through the circuit is too weak for the filament of the bulb to get sufficiently heated up and glow.
The filament of an electric bulb glows because of the heating effect of electric current. As the current passes through the bulb it heats the filament to a high temperature and it glows. So basically, greater the current, greater is the heat energy generated for the bulb to glow. If the current is too weak, the filament might not get heated up enough to glow.
