Answer to Question #257272 in Electricity and Magnetism for Jennwhy21

Question

An electric charge of 2 micro coulombs is immersed in an electric field, whose magnitude is E= 3*10^-2 N/C. Find the potential energy in a point located at 50 cm from a plate

Answer 1

The potential energy is

$$E=q\phi=qEr=3·10^{-8}\text{ J}.$$