Electric potential Flashcards
1
Q
When dielectric is inserted, Capacitance?
A
increases
2
Q
Self energy of solid sphere outside
A
Q^2/8piepsr
3
Q
Self energy of solid sphere total
A
3Q^2/20piepsr
4
Q
Potential due to disc
A
sigma/2eps * (root(R^2 + x^2) - x)
5
Q
Potential at edge of disc
A
sigmaR/pieps
6
Q
Polarization
A
P = eps x E
7
Q
common potential and energy loss for same end joined
A
C1V1+C2V2/(C1+C2)
1/2 C1C2/(C1+C2) * (V1-V2)^2
8
Q
common potential and energy loss for diff end joined
A
C1V1-C2V2/(C1+C2)
1/2 C1C2/(C1+C2) * (V1+V2)^2
9
Q
Capacitance of isolated sphere
A
4piepsr
10
Q
capacitance of cylinder
A
2pieps l/ln(R2/R1)
11
Q
q induced
A
q(1 - 1/k)
