Suppose an object has a charge of 1 C and gains 6.88 * 10^18 electrons. What will the net charge of the object be in C?
Give the answer in absolute value.
It gains a charge of 1.102 coulomb, so shouldn't the net charge be 2.102 coulombs?
-1.6*10^-19 * 6.88*10^18 = -11*10^-1 = -1.1
so so 2.0 - 1.1 = 0.9 C
That's wrong, according to my class...
LOL, sorry but proton is positive and electron is negative.
What do you think would happen to every atom in the universe if protons and electrons were both positive ?
hint: like charges reepel
To calculate the net charge of an object, you need to consider the charges it has gained or lost.
In this case, the object has a charge of 1 C and gains 6.88 * 10^18 electrons. Since electrons carry a negative charge, gaining electrons means gaining a negative charge.
Each electron has a charge of approximately -1.6 * 10^-19 C. So, to find the negative charge gained, multiply the number of electrons gained by the charge of each electron:
Negative charge gained = (6.88 * 10^18 electrons) * (-1.6 * 10^-19 C/electron)
Calculating this gives you approximately -1.1 C of negative charge gained.
To find the net charge, add the initial charge to the charge gained:
Net charge = 1 C + (-1.1 C)
= -0.1 C (in absolute value)
Therefore, the net charge of the object is 0.1 C when considering the signs.