Formula_Sheet_2nd_3rd - Possibly Useful Information: kq1q2...

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Unformatted text preview: Possibly Useful Information: kq1q2 q1q2 Fe = = 2 2 r 4 or E= kQ Q 2= 2 r 4 or = 2 o F = qE E= 2k r = E E N A = E • dA Qencl o 2 o or E=2k E=4k = E = 4 kQencl = = charge/length Vba = V(b) - V(a) = dV(x) Ex(x) = - dx dQ I = dt = JA (T) = (To) [1 + (T - To)] 6 b a = charge/area E•dr Ue( r ) = qV( r ) E( r ) = V( r ) 1 E = charge/volume kQ Q V= r = 4 or kq1q2 q1q2 = r 4 or V L R= I = A 1 1 1 = + R1 R2 Req Ue = V 2 P = IV = R = I R 2 2 2 J = nq v d = Req = R1 + R2 c = 3.0 x 10 m/s 2 o 8 Ebreakdown air ~ 3 x 10 V/m 4o Q C=V= k= 1 = 9.0 o 10 N-m /C 9 2 = 8.85 10 -12 C /N-m (or F/m) 1 1 1 = + C1 C2 Ceq A d 2 Ceq = C1 + C2 Q(t) = Qf (1 - e = RC ^ r μ Id dB = 4 o 2 r -t/ 1 1Q 1 2 UC = 2 QV = 2 C = 2 CV ) Q(t) = Qo e I(t) = Io e -t/ FB = q v FB = I B B 1 + sin 2) -t/ o B•d B= = μoIenclosed 1 μI B = 4 or (sin μI B = 2 or μo = 4 B B= μoIR 2 2 3/2 2(x + R ) 2 μonI 2 (sin + sin 2) μoI B = 2R 10 T-m/A (or H/m) B • dA A= r p 2 -7 B = μonI =μ B B) • d rL 2 μ = IA d = - N dt B = = o (E + v 4 3 C=2r For |z| < 1: For p -1: A=4r 2 V=3 r A = 2 rL V= (1 + z) = 1 + pz + x p x dx = p+1 p+1 p(p-1) 2 p(p-1)(p-2) 3 z + ... 2! z + 3! dx x = ln x ln(a/b) = ln(a) - ln(b) d(tan u) 2 = sec u du d(cot u) 2 = - csc u du sec u = 1/cos u e ax e dx = a =e ab ax ln(ab) = ln(a) + ln(b) d(sin u) = cos u du d(cos u) = - sin u du cot u = 1/tan u (e ) ab d(sec u) = sec u tan u du d(csc u) = - csc u cot u du csc u = 1/sin u ...
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