Using the "conduction tester" on an object it was found that the bulb begins to glow. Is that object a conductor or an insulator? Explain.

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Solution

Yes, if the object is good conductor of electricity then current will pas through conduction tester and the bulb will glow. Hence the object will be a conductor of electricity.

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A tester is used to check the conduction of electricity through two liquids, labelled A and B. It is found that the bulb of the tester glows brightly for liquid A while it glows very dimly for liquid B. You would conclude that
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