- #1
ojsimon
- 56
- 0
Hi
I am sure this is very basic but i am struggling to derive or work this out, and i have looked, on the internet and textbooks and can't find this.
The electric potential at a point is defined as the work done per unit charge to move a small test charge from infinity to that point.
And an equation for it is : EP = k*(Q/R)
I want to get back to the definition from this equation, but i can't get very far:
here is what i have done: WD= work done
Q/R = (wd/v)/R
= wd/vR
But i can't go much further without it just going back to the original form... Can anyone help me?
Thanks
I am sure this is very basic but i am struggling to derive or work this out, and i have looked, on the internet and textbooks and can't find this.
The electric potential at a point is defined as the work done per unit charge to move a small test charge from infinity to that point.
And an equation for it is : EP = k*(Q/R)
I want to get back to the definition from this equation, but i can't get very far:
here is what i have done: WD= work done
Q/R = (wd/v)/R
= wd/vR
But i can't go much further without it just going back to the original form... Can anyone help me?
Thanks