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Home ‣ Electronics ‣ Voltage and Current Comments
  • Question

  • Which voltage source converts chemical energy to electrical energy?


  • Options
  • A. Electrical generator
  • B. Battery
  • C. Solar cell
  • D. Electronic power supply

  • Correct Answer
  • Battery 

    • Voltage and Current problems

    Search Results

    • 1. Which unit of charge contains 6.25 × 1018 electrons?

    • Options
    • A. An ampere
    • B. A coulomb
    • C. A volt
    • D. A joule
      • Discuss
    • 2. A voltmeter is used:

    • Options
    • A. to measure current
    • B. in series with the circuit
    • C. in parallel with the circuit
    • D. to measure coulombs
      • Discuss
    • 3. Which part of an atom has no electrical charge?


    • Options
    • A. Electron
    • B. Neutron
    • C. Proton
    • D. All of the above
      • Discuss
    • 4. What do you call a diagram that shows the electrical connections of a circuit's components?

    • Options
    • A. A schematic diagram
    • B. A pictorial diagram
    • C. A block diagram
    • D. An electrical diagram
      • Discuss
    • 5. If an electrical system is compared to a fluid system, the electrical current corresponds to the:

    • Options
    • A. pressure
    • B. pump
    • C. water wheel
    • D. water flow
      • Discuss
    • 6. Which resistive component is designed to be temperature sensitive?

    • Options
    • A. Thermistor
    • B. Rheostat
    • C. Potentiometer
    • D. Photoconductive cell
      • Discuss
    • 7. The term used to designate electrical pressure is:

    • Options
    • A. voltage
    • B. current
    • C. resistance
    • D. conductance
      • Discuss
    • 8. 

      What does P2 equal in the given circuit?


    • Options
    • A. 45 mW
    • B. 405 mW
    • C. 450 mW
    • D. 900 mW
      • Discuss
    • 9. 

      What would these meter readings indicate about the circuit in the given circuit?

      Meter Readings: I = 10 mA, V = 12 V


    • Options
    • A. R1 is open.
    • B. R2 is open.
    • C. The fuse is open.
    • D. The circuit is operating normally.
      • Discuss
    • 10. What is the total power of the circuit?


    • Options
    • A. 2.2 W
    • B. 4.2 W
    • C. 6.2 W
    • D. 8.2 W
      • Discuss

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