736_Physics ProblemsTechnical Physics

736_Physics ProblemsTechnical Physics - 76 Electric...

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76 Electric Potential P25.38 (a) 0; (b) k Q r e 2 radially outward P25.60 (a) 488 V ; (b) 7 81 10 17 . × J ; (c) 306 km s ; (d) 390 Gm s 2 toward the negative plate; (e) 6 51 10 16 . × N toward the negative plate; P25.40 (a) larger at A ; (b) 200 N C down; (f) 4 07 . kN C toward the negative plate (c) see the solution P25.62 (a) 1 42 . mm ; (b) 9 20 . kV m P25.42 0 553 . k Q R e P25.64 k q am e 2 1 2 3 F H G I K J P25.44 + + + L N M M M O Q P P P k L b L L b L L e α 2 4 2 4 2 2 2 2 2 ln e j e j P25.66 (a) E A = 0 ; E B r = F H G I K J 89 9 2 . V m radially outward; E C r = F H G I K J 45 0 2 . V m radially outward; P25.46 2 2 2 2 2 π σ k x b x a e + + L N M O Q P P25.48 1 56 10 12 . × electrons (b) V A = 150 V ; V r B = + F H G I K J 450 89 9 . V ; V r C = F H G I K J 45 0 . V P25.50 (a) 135 kV ; (b) 2 25 . MV m away from the large sphere and 6 74 . MV m away from the small sphere P25.68 k a L a L b a a b e λ ln + + + + + + L N M M M O Q P P P a f 2 2 2 2 P25.52 (a) 13 3 . C µ ; (b)
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