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Home Electrical Engineering Voltage, Current and Resistance Comments

  • Question
  • Materials with lots of free electrons are called


  • Options
  • A. conductors
  • B. insulators
  • C. semiconductors
  • D. filters

  • Correct Answer
  • conductors 


  • Voltage, Current and Resistance problems


    Search Results


    • 1. 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
    • 2. A multimeter measures

    • Options
    • A. current
    • B. voltage
    • C. resistance
    • D. current, voltage, and resistance
    • Discuss
    • 3. 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
    • 4. A circuit breaker is a

    • Options
    • A. fuse
    • B. switch
    • C. resettable protective device
    • D. resistor
    • Discuss
    • 5. The maximum resistance value for a brown, red, yellow, gold resistor is

    • Options
    • A. 126,000 Ω
    • B. 126,600 Ω
    • C. 114,000 Ω
    • D. 132,000 Ω
    • Discuss
    • 6. 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
    • 7. 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
    • Discuss
    • 8. The unit of electrical charge is the

    • Options
    • A. coulomb
    • B. joule
    • C. volt
    • D. watt
    • Discuss
    • 9. 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
    • 10. 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


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