Electric Circuits and Networks

Answers to Selected Problems

Chapter 1

1. 1. 432,000 Coulombs
   2. 11.66 V
   3. 88.18 AH
   4. 3.76 × 10⁶ J, 1.045 kWh
2. 1. 28 AH
   2. 9 A
   3. 2.94 × 10⁶ J, 0.817 kWh 8.9 A, 71.2 AH
3. 1. 10 AH
   2. 60 AH
   3. 10 A
   4. 2.133 × 10⁶ J, 0.593 kWh
4. 1. a 100 Ω resistor
   2. 0.36 mC
   3. 1 mC
   4. 5 mJ
   5. 23 ms
5. 1. a 0.1 μF capacitor
   2. 1 μC
   3. 5 μJ
   4. 3.75 μJ
6. 1. a 0.6 H inductor
   2. 
   3. 
   4. 
7. 1. –240 W
   2. 120 J , increases
8. It is a resistor of 5 Ω and the current through it is (2 – e^–1000t) A for t ≥ 0.
9. (d) 0.85 A
11. 9.97 A, 1.994 ...