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  • Question

  • ?1.2 V, +15 V, and ?6 V batteries are connected in series. The magnitude of total voltage is _________.


  • Options
  • A. 7.8 V
  • B. 10.2 V
  • C. 22.2 V
  • D. 1.3 V

  • Correct Answer
  • 7.8 V 

    • Series Circuits problems

    Search Results

    • 1. If a 3.9 kΩ, a 7.5 kΩ, and a 5.6 kΩ resistor are connected in series with a 34 V source, the voltage dropped across the 7.5 kΩ resistor equals _____.

    • Options
    • A. 34 V
    • B. 15 V
    • C. 7.8 V
    • D. 11.2 V
      • Discuss
    • 2. If a 47 Ω and a 68 Ω resistor are connected in series, the total resistance is ___.

    • Options
    • A. 3,196 Ω
    • B. less than 47 Ω
    • C. less than 68 Ω
    • D. 115 Ω
      • Discuss
    • 3. 

      In the given circuit, the voltage dropped across R3 equals ___.


    • Options
    • A. 1.5 V
    • B. 3 V
    • C. 6 V
    • D. More information is needed to find the voltage dropped across R3.
      • Discuss
    • 4. The polarity on the side of the resistor where current enters is ______. The polarity on the side of the resistor where current exits is ___________.

    • Options
    • A. positive, positive
    • B. negative, negative
    • C. negative, positive
    • D. positive, negative
      • Discuss
    • 5. 

      In the given circuit, R2 equals _____.


    • Options
    • A. 100 kΩ
    • B. 200 kΩ
    • C. 300 kΩ
    • D. More information is needed to find R2.
      • Discuss
    • 6. A voltage divider is always a _____

    • Options
    • A. series-parallel circuit
    • B. series circuit
    • C. parallel circuit
    • D. bridge circuit
      • Discuss
    • 7. The ______ determines whether connected resistors are in series, parallel, or series-parallel?

    • Options
    • A. current flow
    • B. power source
    • C. voltage flow
    • D. wattage source
      • Discuss
    • 8. 

      In the given circuit, R1 equals _____.


    • Options
    • A. 100 kΩ
    • B. 200 kΩ
    • C. 300 kΩ
    • D. More information is needed to find R1.
      • Discuss
    • 9. 

      The total circuit power in the given circuit equals _____.


    • Options
    • A. 64 µW
    • B. 4 µW
    • C. 0 W
    • D. 16 × 10?12 W
      • Discuss
    • 10. If five equal resistors are connected in series with a 20 V source, and a current of 400 µA is measured, each resistor equals ___.

    • Options
    • A. 10 kΩ
    • B. 50 kΩ
    • C. 125 Ω
    • D. 20 Ω
      • Discuss

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