Question

A small cork with an excess charge of +5.0 µC is placed 0.13 m from another cork, which carries a charge of −3.2 µC. What is the magnitude of the electric force between the corks? The Coulomb constant is 8.98755 × 109 N · m2 /C 2 . Answer in units of N.

Answer 1

Step-by-step explanation:

Given

Charge on first cork
`q_1=5\ mu C`

Placed at
`r=0.13\ m` from another cork

Charge on second cork
`q_2=-3.2\ \mu C`

As two charges are opposite in nature therefore they will experience an attractive force

`F_(12)=(kq_1q_2)/(r^2)`

`F_(12)=(8.987* 10^9* 5* 3.2* 10^(-12))/((0.13)^2)`

`F_(12)=(143.8* 10^(-3))/(1.69* 10^(-2))`

`F_(12)=8.508\ N`