Exercise: Digital Electronics

Questions for: Digital Electronics

Assertion (A): Different symbols are used for different gates

Reason (R): IEEE symbols are the same as traditional symbols for gates.

A:
Both A and R are correct and R is correct explanation of A
B:
Both A and R are correct but R is not correct explanation of A
C:
A is true, R is false
D:
A is false, R is true
Answer: C

IEEE symbols are different than traditional symbols.

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Y = A + A B is the same as
A:
Y = AB
B:
Y = A + B
C:
Y = A + B
D:
Y = A + B
Answer: B

Verify by preparing truth table.

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112 x 1102 = __________ 10
A:
40.5
B:
30.5
C:
20.5
D:
10.5
Answer: A

110.11 =6.75 and 110 = 6 and 6.75 x 6 = 40.5 in decimal.

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In the 8421 BCD code, the decimal number 125, is written as
A:
1111101
B:
0001 0010 0101
C:
7 D
D:
none of these
Answer: A
No answer description is available. Let's discuss.
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A half adder can be used only for adding
A:
1 s
B:
2 s
C:
4 s
D:
8 s
Answer: A

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