What type of energy can capacitors store?
electric potential energy
When do capacitors store energy?
When charge carriers(due to attracton and repulsion at plates) move across a pd supplied by power supply.
What is the equation for energy stored by a capacitor?
W = 1/2QV where w = work done/energy transferred q = charge v = pd
In a V against Q charge what is the area under the graph?
Work done or energy stored by capacitor?
What does a V/Q graph look like for a charging capacitor?
Straight line through the origin,
Where does the equation w = 1/2qv come from?
The fact that the area of a V/Q graph is a triangle, since the two are proportional to each other.
What is the relationship between q and v of a capacitor?
Theyre proportional , this can be seen from a straight line graph
What is the energy stored by a capacitor the same as?
The energy transferred by battery
How can we find other equations for energy stored by a capacitor?
Incorporating equation Q = CV and V = Q/V
What are the other 2 equations for work done of battery or energy transferred to capacitor?
w = 1/2cv^2 w = 1/2q^2/c