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Home ‣ Electronics ‣ Diodes and Applications See What Others Are Saying!
  • Question

  • Why is heat produced in a diode?


  • Options
  • A. due to current passing through the diode
  • B. due to voltage across the diode
  • C. due to the power rating of the diode
  • D. due to the PN junction of the diode

  • Correct Answer
  • due to current passing through the diode 

    • More questions

    • 1. All digital systems that perform arithmetic operations must indicate _______ and ________ for numbers.

    • Options
    • A. size, base
    • B. sign, magnitude
    • C. sign, base
    • D. magnitude, base
      • Discuss
    • 2. The output voltage of a differentiator goes negative on the falling edge of the input pulse.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. The process of converting a decimal number to its binary equivalent is called binary conversion.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. If you borrow from a position that contains a 0, you must borrow from the more significant bit that contains a 1. All 0s up to that point become 1s, and the digit last borrowed from becomes a 0.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. The total resistance in the circuit is 1.6 kΩ.


    • Options
    • A. True
    • B. False
      • Discuss
    • 6. The carry propagation delay in 4-bit full-adder circuits ____________.

    • Options
    • A. is normally not a consideration because the delays are usually in the nanosecond range
    • B. is cumulative for each stage and limits the speed at which arithmetic operations are performed
    • C. decreases in direct ratio to the total number of full-adder stages
    • D. increases in direct ratio to the total number of full-adder stages, but is not a factor in limiting the speed of arithmetic operations
      • Discuss
    • 7. The forward voltage drop for a germanium transistor is 0.7 V and for a silicon transistor is 0.3 V.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. The results of internal IC failures will usually be noticed during the ______ phase of troubleshooting.

    • Options
    • A. diagnostic
    • B. isolation
    • C. repair
    • D. final test
      • Discuss
    • 9. The TTL HIGH level source current is higher than the LOW level sinking current.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. The input resistance, Rin of a common-collector amplifier, consists of ____________.

    • Options
    • A. Rin = RE × AC Current Gain
    • B.
    • C. Rin = RE × ɑ
    • D. none of the above
      • Discuss

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