A negatively charged balloon has 4.6 μC of
charge.
How many excess electrons are on this bal-
loon?
Answer in units of electrons.
what is 4.6microC divided by the charge on an electron?
To find the number of excess electrons on the balloon, we need to use the formula:
Number of excess electrons = Total charge / Charge of an electron
The charge of an electron is given as -1.6 x 10^-19 C (coulombs).
Let's calculate the number of excess electrons using the given information:
Total charge = -4.6 μC = -4.6 x 10^-6 C
Charge of an electron = -1.6 x 10^-19 C
Using the formula:
Number of excess electrons = (-4.6 x 10^-6 C) / (-1.6 x 10^-19 C)
To simplify the calculation, let's divide the numerator and denominator by -1.6 x 10^-19:
Number of excess electrons = (-4.6 x 10^-6 C) / (-1.6 x 10^-19 C)
Number of excess electrons = (4.6 x 10^-6) / (1.6 x 10^-19)
Number of excess electrons = 2875 x 10^13
Thus, the number of excess electrons on the balloon is 2875 x 10^13 electrons.