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Home ‣ Electronics ‣ Ohm's Law Comments
  • Question

  • The ___ rating of a resistor will increase with an increase in the surface area of the resistor.


  • Options
  • A. resistance
  • B. current
  • C. power
  • D. voltage

  • Correct Answer
  • power 

    • Ohm's Law problems

    Search Results

    • 1. The voltage across a ___ resistor is 12 V and the current through it is 500 µA.

    • Options
    • A. 600 Ω
    • B. 2.4 kΩ
    • C. 6 kΩ
    • D. 24 kΩ
      • Discuss
    • 2. ___ is a better way of expressing 7,500,000 W.

    • Options
    • A. 7.5 kW
    • B. 7,500 MW
    • C. 7,500 GW
    • D. 7.5 MW
      • Discuss
    • 3. Using 4 kWh of power is equivalent to using 2000 W of power for 2 h.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. The value of a resistor is in direct proportion to its power handling capabilities.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. Current and voltage have a nonlinear relationship.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. If the voltage across a resistor ___, the current flowing through it will increase.

    • Options
    • A. increases
    • B. decreases
    • C. stays the same
    • D. Not enough information
      • Discuss
    • 7. 

      The power rating for the resistor in the given circuit should be at least ___.


    • Options
    • A. 1/4 W
    • B. 1/2 W
    • C. 1 W
    • D. 2 W
      • Discuss
    • 8. 

      The power rating for the resistor in the given circuit should be at least ______.


    • Options
    • A. 1/4 W
    • B. 1/2 W
    • C. 1 W
    • D. 2 W


      • Discuss
    • 9. Resistance and current are _________.

    • Options
    • A. directly proportional
    • B. inversely proportional
    • C. not related
    • D. similar to voltage
      • Discuss
    • 10. The number of joules used in 1 second is always equal to the number of _______.

    • Options
    • A. siemens
    • B. coulombs
    • C. amperes
    • D. watts
      • Discuss

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