Wtf

[Xylitol]

The question reads...

Points A and B have electric potentials of 5 [V] and 20 [V], respectively. How much work would be required to take 3 [C] of positive charge from A to B? How much work would it take for 3 [C] of negative charge?

So far I know that....
V = W/charge
I know that this is basically pre-algebra by pluggin in numbers but for some reason I'm stumped.

I am not asking for teh answers
I am not paying for the answers
I need help... LoKe 🙂

Thanks

 

[kyparrish]

Originally posted by: Xylitol
Whoops ill edit this back I pressed enter by accident while typing in the rest of the title

Okay please do.

 

[OdiN]

FTW?

 

[Xylitol]

Is everyone stumped or are the brilliant minds of AT dead
Probably cuz the night crew is patrolling 🙂

 

[Xylitol]

Lol - I got it
subtract 20 - 5 and then u get 15
15 = W/3
3 * 15 = W
45 [J/C] <- forgot units 😱

 

[Heisenberg]

The potential energy is equal to the charge multiplied by the voltage. The work done is the change in potential energy.