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  • Question

  • What is the total resistance of four 1 kΩ parallel-connected resistors?


  • Options
  • A. 200 ohms
  • B. 250 ohms
  • C. 400 ohms
  • D. 4 kilohms

  • Correct Answer
  • 250 ohms 

    • Parallel Circuits problems

    Search Results

    • 1. What is the total resistance?


    • Options
    • A. 1.045 kΩ
    • B. 1.545 kΩ
    • C. 2.045 kΩ
    • D. 2.545 kΩ
      • Discuss
    • 2. If 550 mA of current leaves a node that had 250 mA entering from one branch, how much current would enter from the other?

    • Options
    • A. 250 mA
    • B. 300 mA
    • C. 550 mA
    • D. 800 mA
      • Discuss
    • 3. What is the product-over-sum result of 150 and 6800?

    • Options
    • A. 150
    • B. 146.7
    • C. 0.006
    • D. 6800
      • Discuss
    • 4. What happens to total resistance in a circuit with parallel resistors if one of them opens?

    • Options
    • A. It increases.
    • B. It halves.
    • C. It remains the same.
    • D. It decreases.
      • Discuss
    • 5. 

      What would these meter readings indicate about the circuit in the given circuit?

      Meter Readings: I = 7.6 mA, V = 12 V


    • Options
    • A. R1 is open.
    • B. R2 is open.
    • C. The fuse is open.
    • D. The circuit is operating normally.
      • Discuss
    • 6. What procedure should be followed when troubleshooting with an ammeter or voltmeter?

    • Options
    • A. Short the leads and adjust.
    • B. Check the meter's external power supply.
    • C. Start with the highest scale and adjust down to a lower scale.
    • D. Start with the lowest scale and adjust up to a higher scale.
      • Discuss
    • 7. 

      What does R1 equal in the given circuit?


    • Options
    • A. 90 Ω
    • B. 180 Ω
    • C. 200 Ω
    • D. 1.8 kΩ
      • Discuss
    • 8. The current through R1 will be:


    • Options
    • A. 128 mA
    • B. 88 mA
    • C. 48 mA
    • D. 2.2 mA
      • Discuss
    • 9. 

      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
    • 10. 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

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