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Home Electronics Resistance and Power Comments

  • Question
  • A 12-volt battery is delivering 3 amperes to a resistor. The power dissipated by the resistor is 4 watts.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • False 


  • Resistance and Power problems


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    • 1. Variable resistors have problems with the wiper making contact.

    • Options
    • A. True
    • B. False
    • Discuss
    • 2. A digital voltmeter can be used to measure resistance.

    • Options
    • A. True
    • B. False
    • Discuss
    • 3. A protoboard is used to make experimental circuits.

    • Options
    • A. True
    • B. False
    • Discuss
    • 4. The maximum potential a material can withstand without rupture is called breakdown voltage.

    • Options
    • A. True
    • B. False
    • Discuss
    • 5. Carbon composition resistors are the most common and the least expensive type of fixed-value resistor.

    • Options
    • A. True
    • B. False
    • Discuss
    • 6. Fixed-value resistors can internally short-circuit.

    • Options
    • A. True
    • B. False
    • Discuss
    • 7. A load resistance is the resistance of the load.

    • Options
    • A. True
    • B. False
    • Discuss
    • 8. Resistance is inversely proportional to current.

    • Options
    • A. True
    • B. False
    • Discuss
    • 9. A resistor with a value of 9.9 kΩ 10% could have a value between 8.91 kΩ and 10.89 kΩ.

    • Options
    • A. True
    • B. False
    • Discuss
    • 10. An ohmmeter uses an internal battery to measure the resistance of a resistor.

    • Options
    • A. True
    • B. False
    • Discuss


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