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  • Question
  • Which component is open?

    Which component is open? R1 R2 R3 R4


  • Options
  • A. R1
  • B. R2
  • C. R3
  • D. R4

  • Correct Answer
  • R3 


  • Parallel Circuits problems


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    • 1. In a parallel resistive circuit:

    • Options
    • A. there is more than one current path between two points
    • B. the voltage applied divides between the branches
    • C. the total branch power exceeds the source power
    • D. the total circuit conductance is less than the smallest branch conductance
    • Discuss
    • 2. If two parallel-connected resistors dissipate 6 watts and 10 watts of power, then what is the total power loss?

    • Options
    • A. 3.75 watts
    • B. 4 watts
    • C. 16 watts
    • D. 60 watts
    • Discuss
    • 3. 

      In the given circuit, Channel 1 of the stereo amplifier outputs 12 V to the speakers. How much total power is the amplifier delivering to the speakers?


    • Options
    • A. 0 W
    • B. 18 W
    • C. 36 W
    • D. More information is needed to find the total power delivered to the speakers.
    • Discuss
    • 4. The current through R1 will be:


    • Options
    • A. 128 mA
    • B. 88 mA
    • C. 48 mA
    • D. 2.2 mA
    • Discuss
    • 5. 

      What does R1 equal in the given circuit?


    • Options
    • A. 90 Ω
    • B. 180 Ω
    • C. 200 Ω
    • D. 1.8 kΩ
    • Discuss
    • 6. A parallel circuit is also used as a divider for:

    • Options
    • A. conductance
    • B. voltage
    • C. power
    • D. current
    • Discuss
    • 7. What is the total power loss if 2 kΩ and 1 kΩ parallel-connected resistors have an IT of 3 mA?

    • Options
    • A. 6 µW
    • B. 36 µW
    • C. 6 mW
    • D. 36 mW
    • Discuss
    • 8. When a parallel 5 kΩ resistor and a 25 kΩ resistor have a 10 V supply, what is the total power loss?

    • Options
    • A. 2.4 mW
    • B. 3.3 mW
    • C. 24 mW
    • D. 33 mW
    • Discuss
    • 9. Which component is shorted?


    • Options
    • A. R1
    • B. R2
    • C. R3
    • D. R4
    • Discuss
    • 10. What is the total resistance?


    • Options
    • A. 7 kΩ
    • B. 1 kΩ
    • C. 706 Ω
    • D. 353 Ω
    • Discuss


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