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The truth table for the following logic circuit is

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Important Questions on Electronic Devices

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Physics>Modern Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR

Select the output

Y

of the combination of gates shown in figure for inputs

A = 1, B = 0; A = 1, B = 1

and

A = 0, B = 0

respectively.
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Physics>Modern Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR

Which logic gate is represented by the following combination of logic gates?

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Physics>Modern Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR

According to the laws of Boolean algebra, the expression $(A + AB)$ is equal to:

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Physics>Modern Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR

In the combination of the following gates the output

Y

can be written in terms of inputs

A

and

B

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Physics>Modern Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR

Each of the two inputs $A$ and $B$ can assume values either $0$ or $1 .$ Then which of the following will be equal to $\bar{A} \cdot \bar{B} ?$

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Physics>Modern Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR

The value of

A \cdot B + \bar{A} + A

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Physics>Modern Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR

The input values $A$ and $B$ of the Boolean expression $(\bar{A + B}) (\bar{A \cdot B}) = 1$ are respectively:

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Physics>Modern Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR

State De-Morgan's theorems.

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Physics>Modern Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR

What is the output

Y

in the following circuit, when, all the three inputs

A, B, C

are first

0

and then,

1

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Physics>Modern Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR

A = 1

and

B = 0

, then in terms of Boolean algebra,

A + B =

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Physics>Modern Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR

What will be the input of

A

and

B

for the Boolean expression

(\bar{A + B}) \cdot (\bar{A \cdot B}) = 1

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Physics>Modern Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR

The output of the given logic circuit is:

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Physics>Modern Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR

Prove the Boolean identity: $(A + B) (A + C) = A + BC$

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Physics>Modern Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR

To get output '1' at

R,

for the given logic gate circuit the input values must be:

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Physics>Modern Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR

State De-Morgan's theorems.

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Physics>Modern Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR

Write the truth table for the given circuit:

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Physics>Modern Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR

The output of an AND gate is connected to the input of a NOT gate. Draw the logic circuit of this combination of gates and write the truth table.

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Physics>Modern Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR

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The logic circuit shown above is equivalent to :

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Physics>Modern Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR

To get output

1

for the following circuit, the correct choice for the input is:
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Physics>Modern Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR

Three variable Boolean expression

P Q + P Q R + \bar{P} Q + P \bar{Q} R

can be written as

The truth table for the following logic circuit is

Important Questions on Electronic Devices

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