## talita 10 months ago A rubber balloon has become negatively charged, and the charge is measured as 1.00 * 10^-14C according to the this charge, the balloon has an excess of how many electrons?

1. AkashdeepDeb

Charge on balloon = $$- 10^{-14}C$$ Thus, as it is negatively charged, we know that it has an excess of electrons. 1 electron charge = $$-1.6 * 10^{-19} C$$ Thus if one electron has $$-1.6 * 10^{-19} C$$ charge. Then let x electrons have $$- 10^{-14}C$$ charge. Therefore, more electrons means more charge thus they have a direct relation. Thus,$\frac{x}{1} = \frac{- 10^{-14}C}{-1.6 * 10^{-19} C}$ $x = 62500$ And therefore we can conclude, that the number of extra electrons on the ballon = 62500$$e$$ Understood? :)

2. talita

thank you so much

3. AkashdeepDeb

:)