Exercise: Digital Electronics

Questions for: Digital Electronics

Assertion (A): The carry look ahead adder is very fast

Reason (R): The carry look ahead adder generates the carry and sum digits directly.

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
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In the DRAM cell in the figure is the Vt of the NMOSFET is 1 V. For the following three combinations of WL and BL voltages.
A:
5 V, 3 V, 7 V
B:
4 V, 3 V, 4 V
C:
5 V, 5 V, 5 V
D:
4 V, 4 V, 4 V
Answer: C
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A 1 ms pulse can be converted into a 10 ms pulse by using which one of the following
A:
An astable multivibrator
B:
Stable multivibrator
C:
A bistable multivibrator
D:
A J-K flip-flop
Answer: B
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In RAM, all the information can be obtained at the output with
A:
minimum time delay
B:
unequal time delay
C:
nearly identical time delay
D:
maximum time delay
Answer: C
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10 in BCD code represent
A:
10100
B:
1100
C:
010111
D:
None of the above
Answer: D
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