Question

When 1019 electrons are removed from a neutral metal plate through some process, the charge on it becomes ______ .
(A) —1.6 C
(B) + 1.6 C
(C) 10⁹ C
(D) 10⁻¹⁹ C

Answer 1

The charge on an electron is a constant I. e. -1.6*10^-19C if we remove an electron from a substance and we remove a charge of -1.6*10^-19C.

Therefore by quantization of charge, the next 4th charge gained on the substance is equal to +1.6*10^-19C.  

So if we remove 10^19 electrons, the net charge on the substance is q=ne

=>q=10^19*1.6*10^-19C =>q=1.6C.

Therefore answer will be (b) 1.6C.

Answer 2

Holla ^_^

☸ Required Answer is ⬇ ⬇⬇

☯ (B) + 1.6 C


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