Question: A Wheatstone bridge can be used to determine an unknown_____________?

• 1. current
• 2. voltage
• 3. resistance
• 4. power

Question: A device able to supply electrical energy is a __________?

• 1. nonconductor
• 2. battery
• 3. conductor
• 4. microwave

Question: A 6 V battery output is divided down to obtain two output voltages. Three 2.2 kΩ resistors are used to provide the two taps. The two output voltages are___________?

• 1. 2 V, 4 V
• 2. 2 V, 2 V
• 3. 2 V, 6 V
• 4. 4 V, 6 V

Question: The internal resistance of a 20,000 ohm/volt voltmeter set on its 5 V range is_____________?

• 1. 20,000 Ω
• 2. 100,000 Ω
• 3. 200,000 Ω
• 4. 1,000,000 Ω

Question: A certain voltage divider consists of three 1 kΩ resistors in series. Which of the following load resistors will have the least effect on the output voltage?

• 1. 1 MΩ
• 2. 100 kΩ
• 3. 1 kΩ
• 4. 330 Ω

Question: Two 1.2 kΩ resistors are in series and this series combination is in parallel with a 3.3 kΩ resistor. The total resistance is____________?

• 1. 138 Ω
• 2. 1,389 Ω
• 3. 5,700 Ω
• 4. 880 Ω

Question: A certain voltage divider consists of two 12 kΩ resistors in series. Which of the following load resistors will have the most effect on the output voltage?

• 1. 1 MΩ
• 2. 24 kΩ
• 3. 18 kΩ
• 4. 12 kΩ

Question: The parallel combination of a 470 Ω resistor and a 680 Ω resistor is in series with the parallel combination of four 2 kΩ resistors. The total resistance is___________?

• 1. 1,650 Ω
• 2. 1,078 Ω
• 3. 77.8 Ω
• 4. 778 Ω

Question: The parallel combination of a 470 Ω resistor and a 1.5 kΩ resistor is in series with the parallel combination of five 1 kΩ resistors. The source voltage is 50 V. The percentage of the load current through any single 1 KΩ resistor is__________?

• 1. 25 %
• 2. 20 %
• 3. 100 %
• 4. 50 %

Question: On which of the following voltage range settings will a voltmeter present the minimum load on a circuit?

• 1. 1 V
• 2. 50 V
• 3. 500 V
• 4. 1,000 V