Question

NEED ANSWERS ASAPP
Charges of +3 uC and -5 uC are 2 mm from each other.
The-5 uC charge is replaced with a +5 C charge.
How will the electrical force between the charges compare
with the original force?
same force, but in the opposite direction
same force, but in the same direction
greater force, but in the opposite direction
greater force, but in the same direction

Answer 1

Answer:

same force, but in the opposite direction

Explanation:

As we know that the electrostatic force between two charges is given by Coulomb's law of electrostatics

It is given by

$F = \frac{kq_1q_2}{r^2}$

so here we can say that the initial force between the given charges is

$F = \frac{(9\times 10^9)(3\mu C)(-5\mu C)}{(0.002)^2}$

nowwe replace the charge  -5 uC to another charge which is + 5 uC

so here new force will be

$F = \frac{(9\times 10^9)(3\mu C)(5\mu C)}{(0.002)^2}$

now from above equation we can say that magnitude of the force will be same only the nature of the force will change as initially two opposite charges were there so they will attract each other while in new position there are two similar charges so they will repel each other

so correct answer will be

same force, but in the opposite direction

Answer 2

Answer:

A. same force, but in the opposite direction

Explanation:

I got u bro,

e2021 btw