electric field Flashcards
1
Q
A
Positive to negative
Field lines are perpendicular to each surface
2
Q
“Define electric potential at a point in space”
A
The work done per unit charge in bringing a positive charge from infinity to a point
3
Q
A
B
If one of the particles have a negative charge, then the value for E will also be negative.
The magnitude of E represents the external energy needed to completely separate the charge particles to infinity
4
Q
A
From the centre like gravitational
5
Q
A
Direction of electric field is in same direction for both
6
Q
Derive the capacitance equation for an isolated sphere
A
A capacitor is a device that stores charge. An isolated sphere of radius R also stores charge. It can be considered a capacitor with single plate
7
Q
A
8
Q
A
9
Q
Derivation
A
10
Q
A
