Exam_1_Formula_Sheet - Possibly Useful Information: Fe = E=...

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Unformatted text preview: Possibly Useful Information: Fe = E= k q 1 q2 qq = 1 22 2 r 4 or Q kQ 2= 2 r 4 or = 2 F = qE E= 2k r = E N A E 2 or = 4 kQencl = = E • dA Qencl o E=2k E=4k o b a = o E Vba = V(b) - V(a) = dV(x) Ex(x) = - dx J = nq v d (T) = E•dr Ue( r ) = qV( r ) E( r ) = V( r ) kQ Q V= r = 4 or Ue = k q 1 q2 qq = 12 r 4 or L A nq 1 = m E= E 2 dQ I = dt = JA Req = R1 + R2 Ebreakdown air ~ 3 x 10 V/m 6 V R= I = (To)[1 + (T - To)] 2 1 1 1 = + Req R1 R2 c = 3.0 x 10 m/s 10 4 -12 8 V 2 P = IV = R = I R k= 1 4 o = 9.0 r 10 N-m /C 9 2 2 o = 8.85 r 2 10 -12 C /N-m = 8.85 r 2 2 2 F/m 3 C=2 A= A=4 V=3 r = charge/length For |z| < 1: For p -1: (1 + z) = 1 + pz + x x dx = p+1 p p+1 p = charge/area 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) = charge/volume e ax e dx = a =e ab ax ln(ab) = ln(a) + ln(b) (e ) ab ...
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