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Test: Half Adder & full Adder - Electrical Engineering (EE) MCQ


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10 Questions MCQ Test - Test: Half Adder & full Adder

Test: Half Adder & full Adder for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Test: Half Adder & full Adder questions and answers have been prepared according to the Electrical Engineering (EE) exam syllabus.The Test: Half Adder & full Adder MCQs are made for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Half Adder & full Adder below.
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Test: Half Adder & full Adder - Question 1

Total number of inputs in a half adder is __________

Detailed Solution for Test: Half Adder & full Adder - Question 1

Total number of inputs in a half adder is two. Since an EXOR gates has 2 inputs and carry is connected with the input of EXOR gates. The output of half-adder is also 2, them being, SUM and CARRY. The output of EXOR gives SUM and that of AND gives carry.

Test: Half Adder & full Adder - Question 2

If A and B are the inputs of a half adder, the sum is given by __________

Detailed Solution for Test: Half Adder & full Adder - Question 2

If A and B are the inputs of a half adder, the sum is given by A XOR B, while the carry is given by A AND B.

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Test: Half Adder & full Adder - Question 3

Half-adders have a major limitation in that they cannot __________

Detailed Solution for Test: Half Adder & full Adder - Question 3

Half-adders have a major limitation in that they cannot accept a carry bit from a previous stage, meaning that they cannot be chained together to add multi-bit numbers. However, the two output bits of a half-adder can also represent the result A+B=3 as sum and carry both being high.

Test: Half Adder & full Adder - Question 4

If A, B and C are the inputs of a full adder then the sum is given by __________

Detailed Solution for Test: Half Adder & full Adder - Question 4

If A, B and C are the inputs of a full adder then the sum is given by A XOR B XOR C.

Test: Half Adder & full Adder - Question 5

How many AND, OR and EXOR gates are required for the configuration of full adder?

Detailed Solution for Test: Half Adder & full Adder - Question 5

There are 2 AND, 1 OR and 2 EXOR gates required for the configuration of full adder, provided using half adder. Otherwise, configuration of full adder would require 3 AND, 2 OR and 2 EXOR.

Test: Half Adder & full Adder - Question 6

In parts of the processor, adders are used to calculate ____________

Detailed Solution for Test: Half Adder & full Adder - Question 6

Adders are used to perform the operation of addition. Thus, in parts of the processor, adders are used to calculate addresses, table indices, increment and decrement operators, and similar operations.

Test: Half Adder & full Adder - Question 7

In which operation carry is obtained?

Detailed Solution for Test: Half Adder & full Adder - Question 7

In addition, carry is obtained. For example: 1 0 1 + 1 1 1 = 1 0 0; in this example carry is obtained after 1st addition (i.e. 1 + 1 = 1 0). In subtraction, borrow is obtained. Like, 0 – 1 = 1 (borrow 1).

Test: Half Adder & full Adder - Question 8

If A and B are the inputs of a half adder, the carry is given by __________

Detailed Solution for Test: Half Adder & full Adder - Question 8

If A and B are the inputs of a half adder, the carry is given by: A(AND)B, while the sum is given by A XOR B.

Test: Half Adder & full Adder - Question 9

The difference between half adder and full adder is __________

Detailed Solution for Test: Half Adder & full Adder - Question 9

Half adder has two inputs while full adder has three outputs; this is the difference between them, while both have two outputs SUM and CARRY.

Test: Half Adder & full Adder - Question 10

If A, B and C are the inputs of a full adder then the carry is given by __________

Detailed Solution for Test: Half Adder & full Adder - Question 10

If A, B and C are the inputs of a full adder then the carry is given by A AND B OR (A OR B) AND C, which is equivalent to (A AND B) OR (B AND C) OR (C AND A).

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