Discussion
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- Question
How is a 3.9 kΩ resistor color-coded?
Options- A. red, white, red, gold
- B. red, green, orange, silver
- C. orange, white, red, gold
- D. orange, green, orange, silver
- Correct Answer
- orange, white, red, gold
- 1. Which type of test equipment is used to measure resistors?
Options- A. ohmmeter
- B. ammeter
- C. voltmeter
- D. watt meter Discuss
- 2. The source is 24 volts and the load resistance is 100 Ω. What is the load current?
Options- A. 2.4 A
- B. 240 mA
- C. 24 mA
- D. 2.4 mA Discuss
- 3. Power is measured in units of:
Options- A. joules x charge
- B. joules/work
- C. joules x voltage
- D. joules/time Discuss
- 4. Resistance in a circuit is:
Options- A. opposition to current
- B. opposition to voltage
- C. the same as current
- D. the same as voltage Discuss
- 5. What value of a
1.3 kΩ resistor as measured by a digital voltmeter would be considered within tolerance?
Options- A. 1234 Ω
- B. 1235 Ω
- C. 1366 Ω
- D. 1367 Ω Discuss
- 6. How much energy is stored if 6.24 x 1018 electrons are stored in 4 volts?
Options- A. 4 joules
- B. 1.56 x 1018 electrons
- C. 1.56 coulombs
- D. 2.496 x 1019 electrons Discuss
- 7. The unit designator for resistance value is the:
Options- A. ampere
- B. ohm
- C. volt
- D. watt Discuss
- 8. Which is the most important step utilized when measuring resistors?
Options- A. use the highest possible scale
- B. keep test leads short
- C. zero the meter before using
- D. remove power from the circuit Discuss
- 9. If a metallic conductor has a positive temperature coefficient of resistance, then:
Options- A. as temperature increases, resistance decreases
- B. as current increases, resistance decreases
- C. as voltage increases, current increases
- D. as temperature increases, resistance increases Discuss
- 10. The resistivity of copper is:
Options- A. 9.9 Ω
- B. 10.7 Ω
- C. 16.7 Ω
- D. 17.0 Ω Discuss
Resistance and Power problems
Search Results
Correct Answer: ohmmeter
Correct Answer: 240 mA
Correct Answer: joules/time
Correct Answer: opposition to current
Correct Answer: 1235 Ω
Correct Answer: 4 joules
Correct Answer: ohm
Correct Answer: remove power from the circuit
Correct Answer: as temperature increases, resistance increases
Correct Answer: 10.7 Ω
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