Question

A charge of +0.001 C is 1 m to your right and another charge of +1000 C is 1 m to your left. You are holding a charge of −1 C. Which of the following statements is/are true?
a. Because the charge on the left is so much larger than the one on the right, there is no force from the +1 C charge on the charge you are holding.
b. The net force on the charge you are holding is to your right.
c. The force on the charge you are holding from the charge on your left is 1,000,000 times as large as the force from the charge on your right.
d. The magnitude of the force on the charge you are holding would be the same if it were +1 C instead of −1 C.

Answer 1

Answer:

C and D

Explanation:

Charge on right = +0.001 C

Charge on left = 1000 C

Charge held in between = -1C

Ratio between right and left charge:

$=\frac{1000}{.001}\\\\=1\times 10^6$

Which shows charge on left exerts 1,000,000 times more force then charge on right

Charge on left is 1000 times greater in magnitude than charge held between and charge held between is 1000 times greater in magnitude than charge on right. So the magnitude of the force on the charge you are holding would be the same if it were +1 C instead of −1 C.