F = ma

F = kq₁q₂/r²

k = 1/4pe₀

E = F/q_o

E = kq/r² (point charge)

W_AB = EPE_A – EPE_B

V = EPE/q_o

V_B – V_A = -W_AB/q_o

V = kq/r (point charge)

q = CV

Energy = ½ qV = ½ CV² = q²/2C

C_P = C₁ + C₂ + ...

1/C_s = 1/C₁ + 1/C₂ + ...

I = Dq/Dt

V = IR

R = rL/A (Resistance)

P = IV (Power)

R_S = R₁ + R₂ + ...

1/R_P = 1/R₁ + 1/R₂ + ...

q = q_o[1-e^-t/RC] (Charging)

q = q_oe^-t/RC (Discharging)

k = 8.99x10⁹ Nm²/C²

e₀ = 8.85x10^-12 C²/Nm²

e = 1.60x10^-19 C