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Home Electrical Engineering Quantities and Units See What Others Are Saying!
  • Question
  • The number 4,500,000 can be expressed as


  • Options
  • A. 4,500 × 106
  • B. 4.5 × 106
  • C. 4.5 × 10-3
  • D. either 4,500 × 104 or 4.5 × 106

  • Correct Answer
  • 4.5 × 106 


  • More questions

    • 1. Generally, the mesh current method results in fewer equations than the node voltage method.

    • Options
    • A. True
    • B. False
    • Discuss
    • 2. If there are a total of 120 mA into a parallel circuit consisting of three branches, and two of the branch currents are 40 mA and 10 mA, the third branch current is

    • Options
    • A. 50 mA
    • B. 70 mA
    • C. 120 mA
    • D. 40 mA
    • Discuss
    • 3. If you know the current anywhere in a series circuit, you know the current everywhere in a series circuit.

    • Options
    • A. True
    • B. False
    • Discuss
    • 4. A wiper is the sliding contact in a

    • Options
    • A. switch
    • B. photoconductive cell
    • C. thermistor
    • D. potentiometer
    • Discuss
    • 5. When an additional resistor is connected across an existing parallel circuit, the total resistance

    • Options
    • A. remains the same
    • B. decreases by the value of the added resistor
    • C. increases by the value of the added resistor
    • D. decreases
    • Discuss
    • 6. A lower Q produces a narrower bandwidth.

    • Options
    • A. True
    • B. False
    • Discuss
    • 7. Voltage leads current by 90° in a capacitor.

    • Options
    • A. True
    • B. False
    • Discuss
    • 8. Voltage is measured in

    • Options
    • A. volts
    • B. farads
    • C. watts
    • D. ohms
    • Discuss
    • 9. A 0.01 µF capacitor equals how many picofarads?

    • Options
    • A. 100 pF
    • B. 1,000 pF
    • C. 10,000 pF
    • D. 100,000 pF
    • Discuss
    • 10. When the frequency of the voltage applied to a series RC circuit is increased, the phase angle

    • Options
    • A. increases
    • B. decreases
    • C. remains the same
    • D. becomes erratic
    • Discuss


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