Module 6 - 6.2.4 Electrical Potential and Energy Flashcards
1
Q
Electric potential is
A
the energy needed to bring a unit positive charge from infinity to that point in the electric field
2
Q
Electric Potential units
A
JC^-1 = V
3
Q
+ve potential since
-ve potential since
A
- work done against the field due to the repulsive charges
- loss in energy due to attractive charges
4
Q
The electric potential at infinity will be
A
zero
5
Q
Work must be done to move
A
a charge in a direction opposite to the direction of an electric field
6
Q
Electric potential energy is
A
the energy needed to bring a charged object from infinity to that point in the electric field
6
Q
Charges on a sphere
A
spread out as much as possible and so are all located on the surface of the sphere
7
Q
Area underneath a force distance graph =
A
work done
