Answer:
[tex]N=3.32*10^{13}[/tex] electrons
Explanation:
The electric charge Q+ =5.31 × 10^-6 C, is positive.That is because the glittering glass globe lost electrons (negative charges), and remain a positive net electric charge. The total charge Q+ at the globe is equal, but with opposite sign, to the charge negative Q- removed of it. Q- is the sum of the charge of the N electrons removed from the globe:
[tex]Q_{-}=N*q_{e}[/tex]
[tex]Q_{-}=-Q_{+}[/tex]
q_{e}=-1.6*10^{-19}C charge of a electron
We solve to find N:
[tex]N=-Q_{+}/q_{e}=-5.31*10^{-6}/(-1.6*10^{-19})=3.32*10^{13}[/tex]
