Electronic Circuits

21. An ammeter's ideal resistance should be

  1. Zero
  2. Unity
  3. Infinite
  4. The same with the circuits resistance

Correct answer: (A)
Zero

22. An amplifier configuration where the input signal is led to the emitter terminal and the output from the collector terminal is called

  1. Common base
  2. Common emitter
  3. Clipper
  4. Common collector

Correct answer: (A)
Common base

23. An amplifier with efficiency of 85% is likely to be

  1. Class A
  2. Class B
  3. Class AB
  4. Class C

Correct answer: (D)
Class C

24. An electronic transfer from one stage to the next is termed as _________

  1. Doping
  2. Mixing
  3. Coupling
  4. Connecting

Correct answer: (C)
Coupling

25. An emitter follower is equivalent to

  1. Common emitter amplifier
  2. Common collector amplifier
  3. Common base amplifier
  4. Hybrid connection

Correct answer: (B)
Common collector amplifier

26. An ideal differential amplifiers common mode rejection ratio is

  1. Infinite
  2. Zero
  3. Unity
  4. Undetermined

Correct answer: (A)
Infinite

27. An important limitation of crystal oscillator is

  1. Its low output
  2. Its high Q
  3. Less availability of quartz crystal
  4. Its high output

Correct answer: (A)
Its low output

28. An instrument use to measure ones location in terms of coordinates

  1. GPS
  2. ILS
  3. FANS
  4. GSM

Correct answer: (A)
GPS

29. An LC oscillator cannot be used to produce _________ frequencies.

  1. High
  2. Very high
  3. Audio
  4. Very low

Correct answer: (D)
Very low

30. An open fuse circuit has a resistance equal to

  1. Zero
  2. Unity
  3. At least 100Ω at standard
  4. Infinity

Correct answer: (D)
Infinity

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