Question

What is the equation for calculating the electrical force, Fe, between two charges?

Answer 1

Answer is in the attachment and no there is no explanation for why physics is what it is

Answer 2

`F_e = (1)/(4 \pi \epsilon_0) (q_1 q_2)/(r^2)`

Step-by-step explanation:

The electrostatic force (also called Couloumb force) between two electrical charge is given by the following formula:

`F_e = (1)/(4 \pi \epsilon_0) (q_1 q_2)/(r^2)`

where:

`\epsilon_0=8.85\cdot 10^(-12) Fm^(-1)` is the vacuum permittivity

`q_1` is the magnitude of the first charge

`q_2` is the magnitude of the second charge

`r` is the distance between the two charges

This formula gives only the magnitude of the force. The direction depends on the relative sign of the two charges:

- If the two charges have same sign, the force is repulsive (this corresponds to a positive sign in the formula)

- If the two charges have opposite sign, the force is attractive (this corresponds to a negative sign in the formula)