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Draw the transistor based circuit diagram for NOT gate and also give its truth table.

Important Questions on Semiconductor Devices

EASY

Physics>Modern Physics>Semiconductor Devices>Logic Gates with Discrete Components

The logical equation

y = A . B

represents

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Physics>Modern Physics>Semiconductor Devices>Logic Gates with Discrete Components

Identify the operation performed by the circuit given below :

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Physics>Modern Physics>Semiconductor Devices>Logic Gates with Discrete Components

The resultant gate and its Boolean expression for the given circuit is

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Physics>Modern Physics>Semiconductor Devices>Logic Gates with Discrete Components

Digital circuits can be made with the repetitive use of

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Physics>Modern Physics>Semiconductor Devices>Logic Gates with Discrete Components

The truth table given in fig. represents:

A	B	Y
0	0	0
0	1	1
1	0	1
1	1	1

MEDIUM

Physics>Modern Physics>Semiconductor Devices>Logic Gates with Discrete Components

The following figure is the combination of logic gates, The inputs are $A$ are $B .$ The output is $C .$ Which one of the following choices gives the correct matching ?

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Physics>Modern Physics>Semiconductor Devices>Logic Gates with Discrete Components

Which of the following gates will have an output of $1$ ?

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Physics>Modern Physics>Semiconductor Devices>Logic Gates with Discrete Components

Identify the logic operation performed by the given circuit

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Physics>Modern Physics>Semiconductor Devices>Logic Gates with Discrete Components

Draw a circuit diagram for dual-input AND gate by using two diodes.

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Physics>Modern Physics>Semiconductor Devices>Logic Gates with Discrete Components

The logic gate equivalent to the given logic circuit is:
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Physics>Modern Physics>Semiconductor Devices>Logic Gates with Discrete Components

For the given circuit, the input digital signals are applied at the terminals $A, B$ and $C$ . What would be the output at the terminal $y$ ?

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Physics>Modern Physics>Semiconductor Devices>Logic Gates with Discrete Components

To get an output of

1

from the circuit shown in the figure the input must be:

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Physics>Modern Physics>Semiconductor Devices>Logic Gates with Discrete Components

V_{A}

and

V_{B}

are the input voltages (either

5 V

0 V

) and

V_{0}

is the output voltage then the two gates represented in the following circuits

(A)

and

(B)

are :

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Physics>Modern Physics>Semiconductor Devices>Logic Gates with Discrete Components

The only function of a NOT gate is to

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Physics>Modern Physics>Semiconductor Devices>Logic Gates with Discrete Components

In the following logic circuit the sequence of the inputs

A, B

are

(0, 0), (0, 1), (1, 0)

and

(1, 1) .

The output

Y

for this sequence will be :
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EASY

Physics>Modern Physics>Semiconductor Devices>Logic Gates with Discrete Components

A logic gate circuit has two inputs $A$ and $B$ and output $Y$ . The voltage waveforms of $A, B$ and $Y$ are shown below

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The logic gate circuit is

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Physics>Modern Physics>Semiconductor Devices>Logic Gates with Discrete Components

In the circuit, the logical value of $A = 1$ or $B = 1$ when potential at $A$ or $B$ is $5 V$ and the logical value of $A = 0$ or $B = 0$ when potential at $A$ or $B$ is $0 V$ .