Which of the following is a conductor of electric charge?
Copper
Copper is correct.
A conductor lets electric charge flow through it easily. Metals such as copper have a large number of free electrons that carry charge, which is why copper is used in electric wires.
Glass and dry paper are insulators with almost no free charge carriers, and pure water is a very poor conductor because it has very few ions.
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Which of the following is not correct for the electric potential difference?
