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  • Question

  • When parallel resistors are of three different values, which has the greatest power loss?


  • Options
  • A. The smallest resistance
  • B. The largest resistance
  • C. They have the same power loss.
  • D. Voltage and resistance values are needed.

  • Correct Answer
  • The smallest resistance 

    • Parallel Circuits problems

    Search Results

    • 1. Which is considered to be the common reference for a parallel circuit?

    • Options
    • A. Voltage
    • B. Current
    • C. Power
    • D. Resistance
      • Discuss
    • 2. What are the individual values of two parallel resistors whose RT is 8 ohms, when one has double the resistance of the other?

    • Options
    • A. 2.7 ohms and 5.3 ohms
    • B. 8 ohms and 16 ohms
    • C. 10 ohms and 20 ohms
    • D. 12 ohms and 24 ohms
      • Discuss
    • 3. The voltage across any branch of a parallel circuit:

    • Options
    • A. varies as the total current varies
    • B. is inversely proportional to total circuit resistance
    • C. is equally applied to all branch conductances
    • D. is dropped in proportion to each branch resistance
      • Discuss
    • 4. 

      What does VS equal in the given circuit?


    • Options
    • A. 0 V
    • B. 9 V
    • C. 27 V
    • D. More information is needed to find VS.
      • Discuss
    • 5. Kirchhoff's current law for parallel circuits states that the:

    • Options
    • A. sum of all branch voltages equals zero
    • B. total circuit resistance is less than the smallest branch resistor
    • C. sum of currents into a junction is equal to the difference of all the branch currents
    • D. sum of the total currents flowing out of a junction equals the sum of the total currents flowing into that junction
      • Discuss
    • 6. Which are the better test devices used to isolate a suspected open component within a parallel circuit?

    • Options
    • A. a voltmeter or an ohmmeter
    • B. neither an ammeter nor a voltmeter
    • C. a wattmeter or a voltmeter
    • D. an ammeter or an ohmmeter
      • Discuss
    • 7. Components that connect in parallel form:

    • Options
    • A. branches
    • B. open circuits
    • C. short circuits
    • D. a voltage divider
      • Discuss
    • 8. A parallel circuit differs from a series circuit in that a parallel circuit has

    • Options
    • A. no path for current flow
    • B. fewer paths for current flow
    • C. one path for current flow
    • D. more than one path for current flow
      • Discuss
    • 9. 

      What does RT equal in the given circuit?


    • Options
    • A. 90 Ω
    • B. 180 Ω
    • C. 200 Ω
    • D. 1.8 kΩ
      • Discuss
    • 10. 

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


    • Options
    • A. 0 A
    • B. 1.5 A
    • C. 3 A
    • D. More information is needed to find the total current provided to the speakers.
      • Discuss

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