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Semiconductor Electronics · Question 104

AIPMT 2001MCQEasy📈 Topic in 75% papers+4−1
1

The given truth table is for which logic gate [figure]

  1. NAND
  2. XOR
  3. NOR
  4. OR

Answer

(1) NAND

Solution

From the table, Y = 0 only when A = 1 and B = 1; for every other input combination Y = 1.

This is the inverse of the AND output: Y = A B

∴ The truth table is of a NAND gate.

Answer: (1)

AIPMT 2001

Keep practising — Semiconductor Electronics

2

The current in the circuit will be [figure]

  1. 540 A
  2. 550 A
  3. 510 A
  4. 520 A
AIPMT 2001
3

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
Out of syllabusAIPMT 2001
4

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

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
AIPMT 2000
5

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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