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

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Possibly Useful Information: F e = kq 1 q 2 r 2 = q 1 q 2 4 ± ± o r 2 F = q E E ² N A ³ E = kQ r 2 = Q 4 ± ± o r 2 E = 2k ´ r = ´ 2 ± ± o r µ E = 4 ± kQ encl = Q encl ± o E = 2 ± k = 2 ± o E = 4 ± k = ± o µ E = · E d A V ba = V(b) - V(a) = - · a b E d r U e ( r ) = qV( r ) V = kQ r = Q 4 ± ± o r E x (x) = - dV(x) dx E ( r ) = - ¸ V( r ) U e = kq 1 q 2 r = q 1 q 2 4 ± ± o r J = nq v d = nq 2 ¹ m E = 1 º E I = dQ dt = JA ³ R = V I = º L A º (T) = º (T o )[1 + » (T - T o )] R eq = R 1 + R 2 1 R eq = 1 R 1 + 1 R 2 P = IV = V 2 R = I 2 R E breakdown air ~ 3 x 10 6 V/m c = 3.0 x 10 8 m/s k = 1 4 ± ± o = 9.0 ¼ 10 9 N-m 2 /C 2 ± o = 8.85 ¼ 10 -12 C 2 /N-m 2 = 8.85 ¼ 10
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