Q .     When a piece of polythene is rubbed with wool, a charge of `-2\times 10^{ -7 }C` is developed on polythene. What mass is transferred to polythene?

UPSEE 2015
A

`5.69\times 10^-19 kg`

B

`2.25\times 10^-19 kg`

C

`9.63\times 10^-19 kg`

D

`11.38\times 10^-19 kg`

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