If the charge on an object is measured as 4.0 x 10-18C, how many excess...

WAEC 2008

If the charge on an object is measured as 4.0 x 10^-18C, how many excess electrons does the object possess, given that the charge of an electron is 1.6 x 10^-18C

A. 18
B. 19
C. 25
D. 37

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Correct Answer: Option C

Explanation

\(\frac{4 \times 10^{-18}}{1.6 \times 10^{-19}} = 25\)

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If the charge on an object is measured as 4.0 x 10-18C, how many excess...

Correct Answer: Option C

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