Electricity, Magnetism, Optics formulae

Reminder: These symbols generally only work when viewing this page in Internet Explorer and not Netscape.

Bold means a vector. So this is a vector: E, and this is not: E.

Bragg: nl = 2dsinq double slit: nl = dsinq Fe = qE VB - VA = - ó õ B A  E ·dl or El = dV dl ó (ç) õ E·dA = ó (ç) õ E^ dA = qenclosed e0 E = kQ r2 or E = kQ r3 r E = 2kl r = l 2pe0r        line charge kinetic energy = 1 2 mv2 Work = Force·displacement E = s e0        outside a ``flat¢¢conductor mass of the electron me = 9.11×10-31 kg e = 1.6×10-19 C e0 = 8.85×10-12 C2/N·m2 m0 = 4p×10-7 N/A2 g = 9.8 m/sec2 k = 1 4pe0 = 9.0×109 N·m2/C2 loop rule: å i  Vi = 0 point rule: å i  Ii = 0 transformers: V2 = N2 N1 V1 microscopic view of current: I = nqvdA

Snell: n1 sinq1 = n2 sinq2 n = c/v ; v = fl 1 l + 1 l¢ = 1 f ; M = h¢ h = - l¢ l Fm = qv ×B = I l ×B cross product: |A ×B | = ABsinq R = mv^ qB dB = m0Idl ×r 4pr3 loop axis Bx = a2m0I 2   _____ Öx2+a2   3   field around a long wire B = m0I 2pr ó (ç) õ B·dl = m0 Ienclosed solenoid B » m0In Fm = ó õ B·dA ó (ç) õ B·dA = 0 EMF = - d dt Fm F2 = MI1 and so... -EMF2 = d dt F2 = M dI1 dt V = IR P = IV parallel resistors 1 Reff = 1 R1 + 1 R2 + ... uE = 1 2 e0 E2   ;   uB = 1 2 B2 m0 S = E ×B / m0 ; E = B/c