Question

The potential energy of a +2 x 10-6 C charge decreases from 0.15 J to 0.05 J when it is moved from point A to point B. What is the change in electric potential between these two points? Do not enter any (-) sign in your answer.

Answer 1

Hey, this is the first problem I did for you backwards.

Answer 2

same thing again and again

Volts is potential energy PER UNIT charge

That is why they call Volts electric potential

change in potential energy = charge * volts !!!

Answer 3

0.15j-0.05j=0.1

0.1=__*2x10^-6c
0.1/2x10^-6c=___
50000=__

so answer 50000j/c?

Answer 4

.1 Joules = 2*10^-6 V

V = .1 * 10^6 /2 = .05*10^6 = 5*10^4
= 50,000 volts
Yes :)
and yes, volts is Joules per coulomb