Logic Gates - OR, AND, NOT, NAND and NOR

IMPORTANT

Logic Gates - OR, AND, NOT, NAND and NOR: Overview

This topic covers concepts, such as, Types of Signals, Analogue Signals, And Gate using Diode & Uses of Logic Gates etc.

Important Questions on Logic Gates - OR, AND, NOT, NAND and NOR

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Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR> Q 1

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It is representing:

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Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR> Q 2

The logic gate given below represents a
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Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR> Q 3

The same input signal is applied to both the (input) terminals of a given logic gate.

If the output is the(i) same as the (common) input signal

(ii) inverted with respect to the (common) input signal,

Identify the logic gate/s involved in each case.
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Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR> Q 4

Write down the output at X for the inputs A=0,B=0 and A=1, B=1
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Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR> Q 5

Identify the logic gates marked P and Q in the given logic circuit.

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Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR> Q 6

Identify the logic gates marked P and Q in the given logic circuit.
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Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR> Q 7

(i) Identify the logic gates marked P and Q in the given logic circuit.

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Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR> Q 8

The inputs A and B are inverted by using two NOT gates and their outputs are fed to the NOR gate as shown below.
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Analyse the action of the gates (1) and (2) and identify the logic gate of the complete circuit so obtained.

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Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR> Q 9

While realising a NOT gate, for low input, n-p-n transistor is in cut-off mode.

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Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR> Q 10

In the formation of a two-input OR gate using two diodes, negative terminal of one diode is connected to the positive terminal of another diode.

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Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR> Q 11

What are logic gates made of?

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Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR> Q 12

What is a logic function?

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Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR> Q 13

What is a logic element?

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Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR> Q 14

How logic gates are used in real life?

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Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR> Q 15

What are the uses of logic gates?

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Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR> Q 16

Where is NOR gate used?

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Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR> Q 17

What is the expression of XNOR gate?

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Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR> Q 18

How do you write a NOR gate?

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Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR> Q 19

Is NOR the same as and?

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Physics>Electronic Devices>Logic Gates - OR, AND, NOT, NAND and NOR> Q 20

Is NOR gate and XOR gate same?