SO9EVENNUMBEREDPROBLEMS-I

SO9EVENNUMBEREDPROBLEMS-I - 1 = V 2 = 0.775 V V 3 = 1.55 V...

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ANSWERS TO EVEN NUMBERED PROBLEMS I Chapter 21 12) F 1 = -147 N (left) F 2 = + 564 N (right) F 3 = -417 N(left) 14) a) Q 1 = 6.03 x 10 -5 C; Q 2 = 2.97 x 10 -5 C; b) Q 1 = 1.07 x 10 -4 C; Q 2 = -1.68 x 10 -5 C 28) The field is –7.76 x 10 7 N/C (toward the –8.0 μ C charge). 34) The field is –0.75 x 10 6 N/C (toward the –38.6 μ C charge). 36) x = 0.35 m. Chapter 22 4) a. p R 2 E; b. 0 6) –2Q/ e 0 , 0, –Q/ e 0 , 0, +2Q/ e 0 , 22) a. Q/(4 p e 0 r 2 ) ; b. 0; c. Q/(4 p e 0 r 2 ) d. no effect outside shell, induces charges inside 24) a. s / e 0 ; b. 0; c. unaffected for the same surface charges on the inner surfaces. (Why must the +/- σ be on the inner surfaces for two conducting plates?) 31) a. –q; b. Q+q (*Note book is wrong); c. q/(4 p e 0 r 2 ) ; d. 0 ; e. (q+Q)/(4 p e 0 r 2 ) ; Note that k = 1/(4 p e 0). 34) a ) r E R 0 2 /(2 e 0 r) ; b) r E r/(2 e 0 ) radially outward Chapter 23 12) V = V 0 - ( s / 2e 0 ) x 14) a. 3.8 x 10 -8 C/m 2 ; b. 4.4 m 30) 2.0 x 10 3 m/s

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Chapter 24 8) a) 504 V, 1.36 x 10 -3 C, 2.02 x 10 -3 C; b) 122 V, 330 m C, 490 m C 16) 8.9 nC 30) Q 1 = Q 2 = 12.4 m C, Q 3 = 24.8 m C, Q 4 = Q 1 + Q 3 = 37.2 m C, V
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Unformatted text preview: 1 = V 2 = 0.775 V, V 3 = 1.55 V, V 4 = 1.30 V, V ab = 2.85 V 36) Q 1 ’ = 1.77 x 10-8 C, Q 2 ’ = 9.93 x 10-9 C Chapter 25 8) 3.1 mV 10) a) 5.53 A ; b. 7.65 A 22) a) 3.8 x 10-4 W ; b) 1.5 x 10-3 W ; c) 6.0 x 10-3 W 26) nichrome 2.06 k W ; carbon 1.64 k W Chapter 26 4) r = 0.038 W , R = 0.088 W 10) 0.57 k W , 5.1 k W , 2.55 k W , 1.13 k W 12) a) 13.8 V; b) 32.7 W, 5.78 W 20) Try! Some answers are I = 6.15 ma through bottom right resistor, 3.85 ma for resistor AC, 2.31 ma for resistor BC, V AB = 1.85 volts. 34) a ) I 1 = 46 m A right, I 2 = 164 mA left, I 3 = 118 mA up; b) I 1 = 46 m A right, I 2 = 163 mA left, I 3 = 117 mA up 66) 288 W, 144 W Chapter 27 2) 1.7 N out of page (perpendicular to wire and to B ) 4) 14.5 o 8) (-1.08 k - 0.75 j ) x 10-2 N/cm 16) a) left; b) left; c) up; d) in; e) zero; f) down. 22) (+9.6 x 10-16 k ) N 24) 1.83 T east 58) r p /r e = 42.8 62) 1.11 x 10-5 N...
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SO9EVENNUMBEREDPROBLEMS-I - 1 = V 2 = 0.775 V V 3 = 1.55 V...

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