Capacitors Flashcards
1
Q
Capacitor
A
Component that stores electrical charge
2 conducting plates separated by air gap or dielectric
2
Q
Capacitance
A
Amount of charge it is able to store per unit pd across it
3
Q
Uses
A
Flash photography, back up power, ac to dc
4
Q
Time constant
A
Time for Q:
To fall to 37% of initial value
To rise to 63% of initial value
