Quiz  /  Ohms Law Class 11 MCQ Questions With Answers

  • 1. 
    What is the resistance of a lightbulb that experiences 9 Volts and 3 amps of current?

  • 1/3 ohms
  • 3 ohms
  • 27 ohms
  • 9 ohms

  • 2. 
    Solve for the total resistance of the circuit shown

  • 50 V
  • 1970 ohms
  • 705 K ohms
  • 20 Amps

  • 3. 
    What type of circuit is pictured?

  • series
  • Parallel

  • 4. 
    How do you calculate resistance?

  • Voltage X Current
  • Current ÷ Voltage
  • Voltage ÷ Current
  • Current X Amps

  • 5. 
    What would happen if in a circuit the voltage is increase?

  • The time would increase
  • The current would increase
  • The current would decrease
  • The current would stay the same

  • 6. 
    The mathematical relationship among Voltage, Current, and Resistance

  • Faraday's Law
  • Tesla's Law
  • Edison's Law
  • Ohm's Law

  • 7. 
    What is voltage measured in?

  • Ω (Ohms)
  • V (Volts)
  • A (Amps)
  • W (Watts)

  • 8. 
    Why electrical wiring usually are covered with a layer of plastic?

  • To make it look pretty
  • To help electricity flow along the wire
  • To make it safe
  • To add more energy

  • 9. 
    What would happen if in a circuit, the resistance increases but the voltage stays the same?

  • The current would decrease
  • The current would increase
  • The voltage would decrease
  • The voltage would increase

  • 10. 
    Solve for total Current in the circuit shown

  • 25 Amps
  • 35 amps
  • 25 milliamps
  • 35 milliamps

  • 11. 
    What resistance is needed to cause a 50A current flow because of a 500V battery?

  • 10Ώ
  • 5Ώ
  • 2500Ώ
  • 550Ώ

  • 12. 
    What voltage is needed to cause a 5A current flow through a 2Ω resistor?

  • 10V
  • 2.5V
  • 7V
  • 0.4V

  • 13. 
    If lamp 1 is unscrewed from its holder, what will happen to lamp 2?

  • It will get brighter
  • It will stay the same brightness
  • It will go out
  • Nothing will happen

  • 14. 
    What is the current in a circuit with 6 ohms of resistance and a battery containing 24 Volts?

  • 1/4 A
  • 144 A
  • 4 A
  • 0.4 A

  • 15. 
    What voltage is needed to cause a 2A current flow through a 10Ω resistor?

  • 5V
  • 0.2V
  • 20V
  • 200V

  • 16. 
    In order to electrical current to flow through a wire the wire must be connected in a ____________ that includes a source of electrical current.

  • averager matter
  • Complete loop
  • In an incomplete loop
  • Interrupted Circuit

  • 17. 
    How many Volts would we need to produce a current flow of 8 Amps through a 6 Ohm resistor

  • 12 volts
  • 24 volts
  • 1.3333
  • 48 volts

  • 18. 
    What needs to be done to this circuit so that the lamp lights up?

  • Close the switch
  • Add a source and close the switch
  • Add another lamp
  • Add another lamp and a switch

  • 19. 
    What voltage is needed to cause a 50A current flow through a 10Ω resistor?

  • 15V
  • 500V
  • 500 kV
  • 0.2V

  • 20. 
    How do you calculate voltage?

  • Current X Resistance
  • Resistance ÷ Current
  • Current ÷ Resistance
  • Measure it with a ruler
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