Question

A metal sphere has a charge of -6 µC. How many excess electrons are there on the sphere?

4x10^-13

10x10^13

4x10^13

10x10^-13


I'm stuck between A or D...
N=q/e =6•10⁻⁶/1.6•10⁻¹⁹=3.75•10¹³=4•10¹³

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