Lakshya Education MCQs

Question: If the temperature of a crystal diode increases, then leakage current ___________
A.remains the same
D.becomes zero
Answer: Option C

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More Questions on This Topic :

Question 1. The d.c. resistance of a crystal diode is ___________ its a.c. resistance
  1.    the same as
  2.    more than
  3.    less than
  4.    none of the above
Answer: Option C
Question 2. For the same secondary voltage, the output voltage from a centre-tap rectifier is ___________ than that of bridge rectifier
  1.    twice
  2.    thrice
  3.    four time
  4.    one-half
Answer: Option D
Question 3. The disadvantage of a half-wave rectifier is that the___________
  1.    components are expensive
  2.    diodes must have a higher power rating
  3.    output is difficult to filter
  4.    none of the above
Answer: Option C
Question 4. When the crystal current diode current is large, the bias is ___________
  1.    forward
  2.    inverse
  3.    poor
  4.    reverse
Answer: Option A
Question 5. In the breakdown region, a zener didoe behaves like a ___________ source.
  1.    constant voltage
  2.    constant current
  3.    constant resistance
  4.    none of the above
Answer: Option A
Question 6. If the arrow of crystal diode symbol is positive w.r.t. bar, then diode is ___________ biased.
  1.    forward
  2.    reverse
  3.    either forward or reverse
  4.    none of the above
Answer: Option A

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