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Semiconductor Electronics · Question 106

AIPMT 2001MCQEasy📈 Topic in 12% papers+4−1
1

For a common base circuit if ICIE = 0.98 then current gain for common emitter circuit will be

  1. 49
  2. 98
  3. 4.9
  4. 25.5

Answer

(1) 49

Solution

Current gain in common base, = ICIE = 0.98

Current gain in common emitter, = ICIB = 1 -

⇒ = 0.981 - 0.98

⇒ = 0.980.02 = 49

Answer: (1)

Out of syllabusAIPMT 2001

Keep practising — Semiconductor Electronics

2

From the following diode circuits, which diode is in forward biased condition?

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
AIPMT 2000
3

The correct relation between and for a transistor is

  1. = 1-
  2. = 1-
  3. = -1
  4. = 1
Out of syllabusAIPMT 2000

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