11. A current of 200 µA through a 6.8 kΩ resistor produces a voltage drop of ________.
(a) 34.4 V
(b) 340 V
(c) 13.6 V
(d) 1.36 V
12. When 12 V are applied across a 68 Ω resistor, the current is ________.
(a) 816 mA
(b) 17.6 mA
(c) 176 mA
(d) 8.16 mA
13. When there is 12 mA of current through a 1.2 kΩ resistor, the voltage across the resistor is ________.
(a) 14.4 V
(b) 1.4 V
(c) 100 V
(d) 10 V
14. You are measuring the current in a circuit that is operated on an 18 V battery. The ammeter reads 40 mA. Later you notice the current has dropped to 20 mA. How much has the voltage changed?
(a) 9 V
(b) 900 mV
(c) 0 V
(d) 18 V
15. If you wish to increase the amount of current in a resistor from 120 mA to 160 mA by changing the 24 V source, what should the new voltage setting be?
(a) 8 V
(b) 320 V
(c) 3.2 V
(d) 32 V
Related Posts
5555555555 20. What is the approximate resistance of a rheostat if the voltage source is 18 V and the current is 220 mA? (a) 8.2 kΩ (b) 820 Ω (c) 8.2 Ω (d) 82 Ω- 5555555555 18. The following resistors (one each) are connected in a series circuit: 470 Ω, 680 Ω, 1 kΩ, and 1.2 kΩ. The voltage source is 20 V. Current through the 680 Ω resistor is approximately ________. (a) 60 mA (b) 30 mA (c) 6 mA (d) 300 mA
- 5555555555 15. A 680 Ω load resistor, RL, is connected across a constant current source of 1.2 A. The internal source resistance, Rs, is 12 kΩ. The load current, RL, is ________. (a) 0 A (b) 1.2 A (c) 114 mA (d) 1.14 A
- 5555555555 10. If 24 V are applied across a resistor and there are 10.9 mA of current, the resistance is ________. (a) 220 kΩ (b) 22 kΩ (c) 2.2 kΩ (d) 220 Ω
- 5555555555 25. A 120 V voltage source has a source resistance, RS, of 60 Ω. The equivalent current source is ________. (a) 2 A (b) 4 A (c) 200 mA (d) 400 mA