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Home Electronics Resistance and Power Comments

  • Question
  • 4 amperes will flow through a 10 Ω resistor if 20 volts are placed across the resistor.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • False 


  • Resistance and Power problems


    Search Results


    • 1. A 2% 55 kΩ resistor would have a color coding of green, green, black, red, red.

    • Options
    • A. True
    • B. False
    • Discuss
    • 2. The basic instrumentation amplifier has ________ input(s).

    • Options
    • A. 1
    • B. 2
    • C. capacitive
    • D. resistive
    • Discuss
    • 3. The precision rectifier circuit is designed to _________.

    • Options
    • A. rectify waveforms with very large voltage swings
    • B. rectify waveforms with very small voltage swings
    • C. rectify precision waveforms
    • D. amplify and rectify waveforms
    • Discuss
    • 4. If an operational transconductance amplifier (OTA) is used as an amplitude modulator, the voltage gain is varied by applying a _________ voltage to the ______ input.

    • Options
    • A. demodulation, bias
    • B. modulation, bias
    • C. bias, modulation
    • D. low-frequency, bias
    • Discuss
    • 5. The gain of an OTA is the ratio of the output current to the input voltage, and is measured in _____________.

    • Options
    • A. amps
    • B. volts
    • C. siemens
    • D. no units
    • Discuss
    • 6. The resistive track of a rheostat or potentiometer can be classified as having either a linear or tapered resistance.

    • Options
    • A. True
    • B. False
    • Discuss
    • 7. Carbon composition resistors are the most common and the least expensive type of fixed-value resistor.

    • Options
    • A. True
    • B. False
    • Discuss
    • 8. The maximum potential a material can withstand without rupture is called breakdown voltage.

    • Options
    • A. True
    • B. False
    • Discuss
    • 9. A protoboard is used to make experimental circuits.

    • Options
    • A. True
    • B. False
    • Discuss
    • 10. A digital voltmeter can be used to measure resistance.

    • Options
    • A. True
    • B. False
    • Discuss


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