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Test: Number Complements - Electrical Engineering (EE) MCQ


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10 Questions MCQ Test Digital Electronics - Test: Number Complements

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

2’s complement of 11001011 is ____________

Detailed Solution for Test: Number Complements - Question 1

2’s complement of a binary number is obtained by finding the 1’s complement of the number and then adding 1 to it.
2’s complement of 11001011 = 00110100 + 1 = 00110101.

Test: Number Complements - Question 2

On subtracting (010110)2 from (1011001)2 using 2’s complement, we get ____________

Detailed Solution for Test: Number Complements - Question 2

Steps For Subtraction using 2’s complement are:
→ 2’s complement of the subtrahend is determined and added to the minuend.
→ If the result has a carry, then it is dropped and the result is positive.
→ Else, if there is no carry, then 2’s complement of the result is found out and a ‘-’ sign preceeds the result.


Answer: 1000011

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Test: Number Complements - Question 3

On addition of 28 and 18 using 2’s complement, we get ____________

Detailed Solution for Test: Number Complements - Question 3

Steps for Binary Addition Using 2’s complement:
→ The binary equivalent of the two numbers are obtained and added using the rules of binary addition.

Test: Number Complements - Question 4

On addition of -46 and +28 using 2’s complement, we get ____________

Detailed Solution for Test: Number Complements - Question 4

The BCD form is written of the two given numbers, in their signed form. After which, normal binary addition is performed.
Augend is 28 and Subtrahend is -46.

Test: Number Complements - Question 5

On subtracting +28 from +29 using 2’s complement, we get ____________

Detailed Solution for Test: Number Complements - Question 5

Steps For Subtraction using 2’s complement are:
→ 2’s complement of the subtrahend is determined and added to the minuend.
→ If the result has a carry, then it is dropped and the result is positive.
→ Else, if there is no carry, then 2’s complement of the result is found out and a ‘-’ sign preceeds the result.

Test: Number Complements - Question 6

1’s complement of 1011101 is ____________

Detailed Solution for Test: Number Complements - Question 6

1’s complement of a binary number is obtained by reversing the binary bits. All the 1’s to 0’s and 0’s to 1’s.
Thus, 1’s complement of 1011101 = 0100010.

Test: Number Complements - Question 7

On subtracting (01010)2 from (11110)2 using 1’s complement, we get ____________

Detailed Solution for Test: Number Complements - Question 7

Steps For Subtraction using 1’s complement are:
→ 1’s complement of the subtrahend is determined and added to the minuend.
→ If the result has a carry, then it is dropped and 1 is added to the last bit of the result.
→ Else, if there is no carry, then 1’s complement of the result is found out and a ‘-’ sign preceeds the result.

Test: Number Complements - Question 8

On subtracting (001100)2 from (101001)2 using 2’s complement, we get ____________

Detailed Solution for Test: Number Complements - Question 8

Steps For Subtraction using 2’s complement are:
→ 2’s complement of the subtrahend is determined and added to the minuend.
→ If the result has a carry, then it is dropped and the result is positive.
→ Else, if there is no carry, then 2’s complement of the result is found out and a ‘-’ sign preceeds the result.

Test: Number Complements - Question 9

On addition of +38 and -20 using 2’s complement, we get ____________

Detailed Solution for Test: Number Complements - Question 9

Steps for Binary Addition Using 2’s complement:
→ The 2’s complement of the addend is found out and added to the first number.
→ The result is the 2’s complement of the sum obtained.

Test: Number Complements - Question 10

On addition of -33 and -40 using 2’s complement, we get ____________

Detailed Solution for Test: Number Complements - Question 10

The BCD form is written of the two given numbers, in their signed form. After which, normal binary addition is performed.
Augend is -40 and Subtrahend is -33.

Since, there is no carry, so answer will be negative  and 2's complement of the above result is determined. 

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