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Home Electronics Resistance and Power Comments

  • Question
  • How many amps are used by a 100 watt, 120 volt light bulb?


  • Options
  • A. 1.2 amps
  • B. 12000 amps
  • C. 830 mA
  • D. 12 amps

  • Correct Answer
  • 830 mA 


  • Resistance and Power problems


    Search Results


    • 1. A color code of orange, orange, orange is for what ohmic value?

    • Options
    • A. 22 kilohms
    • B. 3300 ohms
    • C. 44000 ohms
    • D. 33 kilohms
    • Discuss
    • 2. Resistors are identified as to wattage by:

    • Options
    • A. size
    • B. color code
    • C. types of materials
    • D. internal construction
    • Discuss
    • 3. What resistor type is found in SIPs and DIPs?

    • Options
    • A. metal film
    • B. wirewound
    • C. metal oxide
    • D. thick film
    • Discuss
    • 4. How do fixed resistors usually fail?

    • Options
    • A. slowly over time
    • B. by increasing their value
    • C. by becoming an open circuit
    • D. by increasing their value and becoming an open circuit
    • Discuss
    • 5. 

      This circuit is a setup for


    • Options
    • A. an antilog amplifier
    • B. a constant-current source
    • C. an instrumentation amplifier
    • D. an isolation amplifier
    • Discuss
    • 6. How many joules of energy will a 10 W lamp dissipate in one minute?

    • Options
    • A. 10 joules
    • B. 60 joules
    • C. 600 joules
    • D. 3600 joules
    • Discuss
    • 7. With a complex circuit, a supply source senses:

    • Options
    • A. open circuit components
    • B. when voltages need to be increased
    • C. only a single resistive connection
    • D. when complex currents are needed
    • Discuss
    • 8. How many connections does a rheostat have?

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
    • Discuss
    • 9. A good fuse will have:

    • Options
    • A. zero ohms resistance
    • B. a medium resistance
    • C. a high resistance
    • D. an infinite resistance
    • Discuss
    • 10. What are the parts of a rheostat?

    • Options
    • A. wiper and resistor track
    • B. solenoid and armature
    • C. contact and wire wound
    • D. center tape and wiper
    • Discuss


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