5_Chapter 17 HomeworkCH17 Current and Resistance

5_Chapter 17 HomeworkCH17 Current and Resistance - Current...

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Current and Resistance 73 46. ( ) 28 Any diameter and length related by 4.8 10 m , dd ll 1.0 m = l 0.22 mm d = such as and . Yes. 48. (a) (b) 4.80 s, lower potential energy (c) 0.040 0 s, converted to internal energy and light (d) $1.26, energy, 576 , 144 ΩΩ 8 .94 10 J × $1 50. (a) (b) 1.9 cents 5 8.6 10 J × 52. 89 V µ 54. (a) 18 C ( b ) 3.6 A 56. (a) (b) 7 9.49 10 ×Ω 7 8.07 10 × 58. , 5.6 k (nichrome) 4.4 k (carbon) 60. No. The fuse should be rated at 3.87 A or less. 62. (a) V I RV I = ∆ 1.5 V 5 0.30 10 A −× 5 5.0 10 × 1.0 V 5 0.20 10 A 5 5.0 × 0.50 V 5 0.10 10
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This document was uploaded on 10/20/2011.

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