Coulomb's Law F = k(Q1Q2/r2) F = G(m1 m2)/r2 k = 9.0 x 109 m2/C2 e = 1.602 x 10-19 C 0 = 8.85 x 10-12 C2/Nm2 Electric Field E = F/q (N/C) F = qE E = k(Q/r2) E = E1 + E2 + . E = k(Q1/r12) + k(Q2/r22) + . a = qE/m q of an electron = 1.602 x 10-19 C for
Magnetic Field B = magnetic field (T) F = ILBsin F = qvBsin V = E/B R (radius) = mv/qB (v is velocity) q/m = v/RB T = 2m/qB Pitch = Tv (parallel or perpendicular) f = qB/2m = NIABsin (Nm) N = # loops of wire U = -NIABcos = -Bcos = NIA Right Hand Ru