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Home ‣ Electronics ‣ Resistance and Power Comments
  • Question

  • Resistance in a circuit is:


  • Options
  • A. opposition to current
  • B. opposition to voltage
  • C. the same as current
  • D. the same as voltage

  • Correct Answer
  • opposition to current 

    • Resistance and Power problems

    Search Results

    • 1. 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
    • 2. Resistance is:

    • Options
    • A. the opposition to current flow accompanied by the dissipation of heat
    • B. symbolized by R, measured in ohms, and directly proportional to conductance
    • C. directly proportional to current and voltage
    • D. represented by the flow of fluid in the fluid circuit
      • Discuss
    • 3. What are the two major categories for resistors?

    • Options
    • A. low and high ohmic value
    • B. commercial and industrial
    • C. low and high power value
    • D. fixed and variable
      • Discuss
    • 4. What current is flowing in the circuit?


    • Options
    • A. 288 kA
    • B. 2 kA
    • C. 50 mA
    • D. 500 µA
      • Discuss
    • 5. After a lamp is turned on, its filament resistance will change to become:

    • Options
    • A. less resistive
    • B. cooler
    • C. brighter
    • D. more resistive
      • Discuss
    • 6. Power is measured in units of:

    • Options
    • A. joules x charge
    • B. joules/work
    • C. joules x voltage
    • D. joules/time
      • Discuss
    • 7. 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
    • 8. Which type of test equipment is used to measure resistors?

    • Options
    • A. ohmmeter
    • B. ammeter
    • C. voltmeter
    • D. watt meter
      • Discuss
    • 9. 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
      • Discuss
    • 10. 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

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