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Semiconductor Electronics

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

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)

Keep practising — Semiconductor Electronics

Ques. 2AIPMT 2001

The current in the circuit will be [figure]

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

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 syllabus
Ques. 4AIPMT 2000

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

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

The correct relation between and for a transistor is

  1. = 1-
  2. = 1-
  3. = -1
  4. = 1
Out of syllabus

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