In a ripple counter,
Answer: A
In a ripple counter the effect ripples through the counter.
Enter details here
The number of inputs and outputs of a full adder are
Answer: A
Inputs are carry from lower bits and two other bits. Outputs are SUM and CARRY.
Enter details here
A mod 4 counter will count
Answer: B
Mod 4 counter has 4 states, 0 to 3.
Enter details here
Assertion (A): A demultiplexer can be used as a decoder.
Reason (R): A demultiplexer can be built by using AND gates only.
Answer: C
Demultiplexer requires NOT gates also in addition to AND gates.
Enter details here
The number FF in hexadecimal system is equivalent to number __________ in decimal system.
Answer: B
FF = 15 x 16 + 15 = 255.
Enter details here
DeMorgan's first theorem shows the equivalence of
Answer: B
No Explanation.
Enter details here
If memory chip size is 256 x 1 bits, the number of chips required to make 1 k byte memory is
Answer: D
(1024 x 8)/(256 x 1 ) = 32.
Enter details here
An AND gate has four inputs. One of the inputs is low and other inputs are high. The output
Answer: A
In AND gate all inputs must be high to give high output.
Enter details here
The applications of shift registers are
1.Time delay
2.Ring counter
3.Serial to parallel data conversion
4.Serial to serial data conversion
Which of the above are correct?
Answer: C
Shift registers are used for all these applications.
Enter details here
In a 4 input OR gate, the total number of High outputs for the 16 input states are
Answer: B
OR gate gives high output when one or more inputs are high.
Enter details here