Electricity And Ohms Law Questions

9 Questions

Settings
Please wait...
Electricity And Ohms Law Questions

Material on Ohm's Law, Voltage, Current, and Resistance.


Questions and Answers
  • 1. 
    What is the unit for voltage?
    • A. 

      Volts

    • B. 

      Amperes

    • C. 

      Ohms

    • D. 

      Joules

  • 2. 
    What is the unit for resistance?
    • A. 

      Volts

    • B. 

      Amperes

    • C. 

      Ohms

    • D. 

      Joules

  • 3. 
    A certain steam iron carries a current of 6.4 A when connected to a 120 V source.  What is the resistance of the steam iron?
    • A. 

      1.875 Ω

    • B. 

      0.05 Ω

    • C. 

      768 Ω

    • D. 

      18.75 Ω

  • 4. 
    The resistance of a hotplate is 48 Ω .  How much current does the plate carry when connected to a 120-V source?
    • A. 

      120 A

    • B. 

      2.5 A

    • C. 

      5760 A

    • D. 

      0.4 A

  • 5. 
    A typical size-D battery has about how many volts?
    • A. 

      0.05 V

    • B. 

      100 V

    • C. 

      1.5 V

    • D. 

      9 V

  • 6. 
    Voltage is a measurement of what?
    • A. 

      Radiant energy of a lightbulb in a circuit

    • B. 

      Kinectic energy of a motor in a circuit

    • C. 

      Potential energy stored in a battery

    • D. 

      The flow of electrons

  • 7. 
    What is the unit for current?
    • A. 

      Volts

    • B. 

      Amperes

    • C. 

      Ohms

    • D. 

      Joules

  • 8. 
    Which of these is the equation for Ohm's Law?
    • A. 

      W = Fd

    • B. 

      V = IR

    • C. 

      R = IV

    • D. 

      PE = mgh

  • 9. 
    Electrical Power is measured in :
    • A. 

      Watts

    • B. 

      Amperes

    • C. 

      Volts

    • D. 

      Meters