Semiconductor Electronics · Question 17

Find the correct combination of A, B, C and D inputs which can cause the LED to glow. [figure]

1. 1000
2. 0011
3. 0100
4. 1101

The correct truth table for the given input data of the following logic gate is : [figure]

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

The given circuit works as : [figure]

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

The charge stored by the capacitor C in the given circuit in the steady state is . [figure]

1. 7.5
2. 5
3. 10
4. 12.5

The output voltage in the following circuit is (Consider ideal diode case) [figure]

1. 0 V
2. +5 V
3. −5 V
4. 10 V

In the following circuit, the reading of the ammeter will be (Take Zener breakdown voltage = 4 V) [figure]

1. 60 mA
2. 80 mA
3. 10 mA
4. 24 mA

Consider the following logic circuit. [figure] The output is Y = 0 when :

1. A = 1 and B = 0
2. A = 0 and B = 0
3. A = 1 and B = 1
4. A = 0 and B = 1

The Boolean expression Y = A BC + A C can be realised with which of the following gate configurations. Choose the correct answer from the options given below:

1. B, C Only
2. A, B, C Only
3. A, B Only
4. A, C Only

Consider an n-type semiconductor in which ne and nh are number of electrons and holes, respectively. Choose the correct answer from the options given below :

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

Choose the correct logic circuit for the given truth table having inputs A and B. [figure]

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