Question

. A charge of 20 x 10−6 C is 20 cm from another charge of 20 x 60−6 C

a. Find the force between them.

b. Determine the 𝐸𝑝 midway between them.

c. How much force will be experienced by an electron placed midway between them?

Answer 1

Solution

a) force is between them,

$F=\frac{kqq'}{r^2}\\=\frac{9*10^9*20*20*10^{-12}}{0.2*0.2}\\=90N$

b) Determine the 𝐸𝑝 midway between them is zero.

c) force will be experienced by an electron placed midway between them is zero.