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  • Question

  • Determine if diodes D1 and D2 in the given figure are forward or reverse biased.

    Determine if diodes D1 and D2 in the given figure are forward or reverse biased. D1 forward and D2 r


  • Options
  • A. D1 forward and D2 reverse
  • B. D2 forward and D1 reverse
  • C. D1 and D2 reverse
  • D. D1 and D2 forward

  • Correct Answer
  • D1 forward and D2 reverse 

    • Signals and Switches problems

    Search Results

    • 1. Determine the voltage on the collector Vc of the given transistor circuit.


    • Options
    • A. 0 V
    • B. +10 V
    • C. +4.7 V
    • D. +0.5 V
      • Discuss
    • 2. What is the period of a clock waveform that has a frequency of 15.4 kHz?

    • Options
    • A. 649 µs
    • B. 6.49 µs
    • C. 64.9 µs
    • D. 0.649 µs
      • Discuss
    • 3. Normal operation of an NPN bipolar transistor requires the base to be ________ with respect to the emitter, and ________ with respect to the collector.

    • Options
    • A. positive, negative
    • B. positive, positive
    • C. negative, positive
    • D. negative, negative
      • Discuss
    • 4. When an IC has two rows of parallel connecting pins, the device is referred to as a:

    • Options
    • A. QFP
    • B. DIP
    • C. TSSOP
    • D. CMOS
      • Discuss
    • 5. Internally, a computer's binary data are almost always transmitted on parallel channels, commonly referred to as the:

    • Options
    • A. parallel bus
    • B. serial bus
    • C. data bus
    • D. memory bus
      • Discuss
    • 6. How long will it take to serially transmit the hexadecimal number C316 if the clock frequency is 1.5 MHz?

    • Options
    • A. 4.69 ms
    • B. 4.69 µs
    • C. 5.33 ms
    • D. 5.33 µs
      • Discuss
    • 7. What is the minimum voltage required before a diode will allow current to flow between the cathode and the anode?

    • Options
    • A. 0.7 V
    • B. 0.07 V
    • C. 4.3 V
    • D. 0.2 V
      • Discuss
    • 8. What is the output voltage Vout for the given circuit if the input voltage changes to 0 V?


    • Options
    • A. +12 V
    • B. +15 V
    • C. +3 V
    • D. 0 V
      • Discuss
    • 9. With surface-mount technology (SMT), the devices should:

    • Options
    • A. utilize transistor outline connections
    • B. mount directly
    • C. have parallel connecting pins
    • D. require holes and pads
      • Discuss
    • 10. A TTL totem-pole circuit is designed so that the output transistors:

    • Options
    • A. are always on together
    • B. provide phase splitting
    • C. provide voltage regulation
    • D. are never on together
      • Discuss

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