Semiconductor Electronics · Question 7

A logic circuit provides the output Y as per the following truth table : [figure] The expression of the output Y is :

1. A B + A
2. A B + A
3. B
4. B

Consider the following statements A and B and identify the correct answer : [figure]

1. A is correct but B is incorrect
2. A is incorrect but B is correct
3. Both A and B are correct
4. Both A and B are incorrect

The output (Y) of the given logic gate is similar to the output of an/a [figure]

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

[figure] The I-V characteristics shown above are exhibited by a

1. Light emitting diode
2. Zener diode
3. Photodiode
4. Solar cell

When the output of an OR gate is applied as input to a NOT gate, then the combination acts as a

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

The output Y for the inputs A and B of the given logic circuit is: [figure]

1. A B
2. A B
3. A + B
4. A + B

Given below are two statements: In the light of the above statements, choose the most appropriate answer from the options given below :

1. Both Statement I and Statement II are incorrect.
2. Statement I is correct but Statement II is incorrect.
3. Statement I is incorrect but Statement II is correct.
4. Both Statement I and Statement II are correct.

A full wave rectifier circuit consists of two p-n junction diodes, a centre-tapped transformer, capacitor and a load resistance. Which of these components removes the ac ripple from the rectified output?

1. p-n junction diodes
2. Capacitor
3. Load resistance
4. A centre-tapped transformer

For the following logic circuit, the truth table is: [figure]

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

[figure] In the given circuits (a), (b) and (c), the potential drop across the two p-n junctions are equal in

1. Circuit (a) only
2. Circuit (b) only
3. Circuit (c) only
4. Both circuits (a) and (c)