Please help Questions about Electricity and Work

[fluffy22]

1. What is the electric field magnitude midway between charges of Q1 = 2 C and Q2 = 9 C separated by 2 m?


2. How much work does a 9 V battery do in pushing 9 mC of charge through a circuit containing one lightbulb?


3. Points A and B each have an electric potential of +3 V. How much work is required to take 1 mC of charge from A to B?

 

[gneill]

Hi Fluffy22,
you need to show some effort at solving the problems before help can be given; otherwise how will we know how to help? We don't do your homework for you here!