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Semiconductor Electronics

JEE Main 2025 (Online) 24th January Evening ShiftMCQEasy📈 Topic in 55% papers+4−1
Ques. 1JEE Main 2025, 24 January (Evening Shift)

The output of the circuit is low (zero) for : [figure] Choose the correct answer from the options given below :

  1. (A), (B) and (C) only
  2. (A), (C) and (D) only
  3. (B), (C) and (D) only
  4. (A), (B) and (D) only

Answer

(3) (B), (C) and (D) only

Solution

The inputs of the second gate are joined it works as a NOT gate.

[figure]

Z= X+Y, which is 0 whenever X+Y=1:

(A) X=0, Y=0 Z=1

(B) X=0, Y=1 Z=0

(C) X=1, Y=0 Z=0

(D) X=1, Y=1 Z=0

(B), (C) and (D) only

Answer: (3)

Keep practising — Semiconductor Electronics

Ques. 2JEE Main 2025, 23 January (Evening Shift)

What is the current through the battery in the circuit shown below? [figure]

  1. 1.5 A
  2. 0.25 A
  3. 1.0 A
  4. 0.5 A
Ques. 3JEE Main 2025, 22 January (Morning Shift)

Which of the following circuits represents a forward biased diode? [figure] Choose the correct answer from the options given below:

  1. (C) and (E) only
  2. (A) and (D) only
  3. (B), (D) and (E) only
  4. (B), (C) and (E) only
Ques. 4JEE Main 2025, 22 January (Evening Shift)

[figure] To obtain the given truth table, following logic gate should be placed at G :

  1. NOR Gate
  2. OR Gate
  3. AND Gate
  4. NAND Gate

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