rq

F = qE

F = kQq

r2E= kQ

r2qq

E

E

W= F xrqE

EP=U=

EK= ½ mv2

Q

W= F xr kQqr2r

E = F q

V = W q

EA= kQ

r2 EB= kQ

r2

ENET = EA + EB

A B

d

E

V

E=Vd

EK= ½ mv2

+ + + + + + + + + + +

- - - - - - - - - - - - - - - -F = qE

V = W q

- q

W= xdqE =Ep

- q

C=QV

Q A

C= Kε0Adε0 = 8.85x10-12

DISCHARGINGCHARGINGLoad “capacitors”

V V

I I

t t

t t

E

V

E=Vd

+ + + + + + + + + + +

- - - - - - - - - - - - - - - -

C=QEd

Q

V

+ - +-

+ -

+- +-+

-

+-

+- +

-

+-