Question

Two object accumulated a charge of 4.5 μC and another a charge of 2. 8 μC. These two objects are separated by a distance of 2.5 cm. Calculate the magnitude of the electric force between these two objects.

181 .24 N

4.53 N

1.81 x 1014 N

2.02 x 10-8 N

Answer 1

We will use the Coulomb’s Law:

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

`\epsilon_0 = 8.85* 10^(-12)`

`F = (1)/(4 * (3.14) * (8.85* 10^(-12)))(4.5* 10^(-6) * 2.8 * 10^(-6))/((2.5* 10^(-2))^2) = 181.24 N`

The answer is (a).