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  • Question

  • Resistance in a series circuit will:


  • Options
  • A. control the voltage
  • B. double the current
  • C. halve the power
  • D. oppose current

  • Correct Answer
  • oppose current 

    • Series Circuits problems

    Search Results

    • 1. 

      If a voltage is connected between contacts 2 and 3 in the given circuit, which resistors will carry current?


    • Options
    • A. All twelve resistors will carry current.
    • B. Only R6 and R11 will carry current.
    • C. Only R2, R4, R6, and R11 will carry current.
    • D. Only R3, R6, R9, and R12 will carry current.
      • Discuss
    • 2. What is wrong, if anything, with this circuit?


    • Options
    • A. R1 is open.
    • B. R1 is shorted.
    • C. R2 is open.
    • D. R2 is shorted.
      • Discuss
    • 3. If series resistors dissipate 16 mW, 107 mW, 146 mW, and 243 mW, what is the total power consumed by the circuit?

    • Options
    • A. 128 mW
    • B. 269 mW
    • C. 512 mW
    • D. 1024 mW
      • Discuss
    • 4. A short circuit has:

    • Options
    • A. too much resistance
    • B. no conductance
    • C. no resistance
    • D. low current
      • Discuss
    • 5. The voltage drop across a series resistor is proportional to what other value?

    • Options
    • A. total resistance
    • B. its own resistance
    • C. wattage rating
    • D. the amount of time the circuit is on
      • Discuss
    • 6. Given a series circuit containing resistors of different values, which statement is not true?

    • Options
    • A. The current through each resistor is the same.
    • B. The sum of the voltage drops across each resistive element will be equal.
    • C. The total resistance is the sum of the value of the resistors.
    • D. The voltage drop across each resistor is the same.
      • Discuss
    • 7. 

      In the given circuit, what type of failure will cause the voltage at point B to equal the voltage at point C?


    • Options
    • A. R1 shorts
    • B. R2 shorts
    • C. R3 shorts
    • D. R2 opens
      • Discuss
    • 8. One of the most common applications of a potentiometer is as an adjustable voltage divider, also known as

    • Options
    • A. voltage control
    • B. current control
    • C. volume control
    • D. divider control
      • Discuss
    • 9. If three resistors of 1.5 kilohms, 470 ohms, and 3300 ohms are in series with a 25-volt source, what is the total circuit current?

    • Options
    • A. 210 mA
    • B. 5.2 mA
    • C. 4.7 mA
    • D. .007 A
      • Discuss
    • 10. If series current doubles, then:

    • Options
    • A. resistance is halved
    • B. voltage is doubled
    • C. voltage is reduced
    • D. resistance is doubled
      • Discuss

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