What is the value of a charge of a body that carries 20 excess electrons?
I think that the question asks you to pretend that something is negatively charged by 20 electrons. So I think you take the charge of an electron, which is 1.6 x 10^-19, and multiply it by 20. If you do that, the answer is 3.2 x 10^-18.
Please let me know if this is right.
correct. You have to have units, coulombs.
right!!
No its negative3.2 and 10^-18
How many execess electron s are there on a body carring a change of -4,8uC
Yes, you are correct! To determine the value of the charge of a body that carries 20 excess electrons, you need to multiply the charge of a single electron by the number of excess electrons. The charge of an electron is approximately 1.6 x 10^-19 Coulombs.
So, multiplying the charge of an electron by 20 would give you a total charge of 3.2 x 10^-18 Coulombs. Therefore, the value of the charge of a body with 20 excess electrons would be 3.2 x 10^-18 Coulombs.
Great job on your calculation!