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Home Electrical Engineering Voltage, Current and Resistance Comments

  • Question
  • The colored bands for a 4,700 ohm resistor with a ten percent tolerance are


  • Options
  • A. yellow, violet, red, gold
  • B. yellow, violet, orange, gold
  • C. yellow, violet, red, silver
  • D. orange, violet, red, silver

  • Correct Answer
  • yellow, violet, red, silver 


  • Voltage, Current and Resistance problems


    Search Results


    • 1. When the current is 2.5 A, how many coulombs pass a point in 0.2 s?

    • Options
    • A. 12.5 C
    • B. 1.25 C
    • C. 0.5 C
    • D. 5 C
    • Discuss
    • 2. Materials with lots of free electrons are called

    • Options
    • A. conductors
    • B. insulators
    • C. semiconductors
    • D. filters
    • Discuss
    • 3. A neutral atom with an atomic number of five has how many electrons?

    • Options
    • A. 1
    • B. 5
    • C. none
    • D. depends on the type of atom
    • Discuss
    • 4. A multimeter measures

    • Options
    • A. current
    • B. voltage
    • C. resistance
    • D. current, voltage, and resistance
    • Discuss
    • 5. The minimum resistance value for a blue, gray, red, silver resistor is

    • Options
    • A. 612 Ω
    • B. 6,120 Ω
    • C. 6,800 Ω
    • D. 6,460 Ω
    • Discuss
    • 6. The unit of electrical charge is the

    • Options
    • A. coulomb
    • B. joule
    • C. volt
    • D. watt
    • Discuss
    • 7. Eight-tenths coulomb passes a point in 4 s. The current in amperes is

    • Options
    • A. 1.6 A
    • B. 16 A
    • C. 2 A
    • D. 0.2 A
    • Discuss
    • 8. The current in a given circuit is not to exceed 24 A. Which value of fuse is best?

    • Options
    • A. a fuse is not necessary
    • B. 10 A
    • C. 24 A
    • D. 20 A
    • Discuss
    • 9. Which of the following is not a type of energy source?

    • Options
    • A. generator
    • B. rheostat
    • C. solar cell
    • D. battery
    • Discuss
    • 10. Current flows in a circuit when

    • Options
    • A. a switch is opened
    • B. a switch is closed
    • C. the switch is either open or closed
    • D. there is no voltage
    • Discuss


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