[Solved] Which among the following cannot be the charge of a charged body?

Which among the following cannot be the charge of a charged body?

a) 4.8*10-14 Coulomb
b) 6.4*10-15 Coulomb
c) 5*10-14 Coulomb
d) 3.2*10-10 Coulomb

Answer: c
Explanation: The charge of a body must be an integral multiple of the charge of an electron. 5*10-14 is not an integral multiple of (1.602*10-19 Coulomb) which is equal to the charge of an electron. But we can see that 4.8, 6.4, 3.2 are integral multiples of 1.6.

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