5.4 Capacitance

Question 1

Capacitor are Used in…

Answer 1

Pulsed power
Temporary batteries
Defibrillator

Question 2

Capacitance definition

Answer 2

The charge stored per unit volt

Question 3

Farad definition

Answer 3

One farad can be described as the capacitance which stores a one coulomb charge across a pd of one volt

Question 4

Capacitance equation

Answer 4

C=Q/V

Question 5

EMF definition

Answer 5

Electrical energy generated per unit coulomb passing through a source

Question 6

Pd definition

Answer 6

Electrical energy transferred per unit coulomb passing through a component

Question 7

E stored equations

Answer 7

E=1/2.Q^2/C
E=1/2.C.V^2

Question 8

Capacitors in parallel and series

Answer 8

Parallel: C1+C2+C3…
Series: 1/C1+1/C2+1/C3..

Question 9

Log equations

Answer 9

V=Vo.e^-t/RC