# Electronics and Communication Engineering - Digital Electronics

26.

The sum of 11101012 and 110112 in decimal form will be

 A. 65 B. 75 C. 85 D. 95

Explanation:

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27.

Binary 1111 when added to binary 11111, the result in binary is

 A. 111111 B. 1111 C. 1000 D. 10000

Explanation:

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28.

In the 2's complement Adder-Subtractor

 A. sign magnitude numbers represent negative numbers B. the sign magnitude numbers have "1" as leading bit C. the sign magnitude numbers have '0' as leading bit D. 2's complement represents positive numbers

Explanation:

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29.

The widely used binary multiplication method is

 A. repeated addition B. add and shift C. shift and add D. any of the above

Explanation:

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30.

Which of the following logic family is fastest of all?

 A. TTL B. RTL C. DCTL D. ECL