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Digital Computer Electronics
Comments
Question
Conversion of an octal number 134
8
to a binary number is
Options
A. 001011011
2
B. 001101100
2
C. 001011100
2
D. 110011
2
E. None of the above
Correct Answer
001011100
2
Digital Computer Electronics problems
Search Results
1. Conversion of hexadecimal number 93FA
16
to it's binary number equivalent is
Options
A. 1001001111111010
2
B. 10010011111110111
2
C. 110011111110011
2
D. 111110000111
2
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: 1001001111111010
2
2. The 2's compliment of binary number 0.01011 is:
Options
A. 1.10101
B. 0.10101
C. 1.10100
D. 0.10100
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: 1.10101
3. Consider as RS flip-flops with both inputs set to 0. If a momentary '1' is applied at the input S, then the output
Options
A. Q will flip from 0 to 1
B. Q will flip from 0 to 1 and then back to 0
C.
Q
will flip from 0 to 1
D.
Q
will flip from 0 to 1 and then back to 0
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: Q will flip from 0 to 1
4. Parallel adders are
Options
A. combinational logic circuits
B. sequential logic circuits
C. both of the above
D. All of the above
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: combinational logic circuits
5. Subtraction of 100101100
2
from 1110101010
2
is
Options
A. 1001011110
2
B. 0110100001
2
C. 1111000001
2
D. 1111011111
2
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: 1001011110
2
6. The value of a capacitor can be made larger by:
Options
A. moving the plates further apart
B. moving the plates closer together
C. increasing the voltage applied to the plates
D. decreasing the voltage applied to the plates
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: moving the plates closer together
7. The Norton current is sometimes called the
Options
A. Shorted-load current
B. Open-load current
C. Thevenin current
D. Thevenin voltage
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: Shorted-load current
8. In a transistor operates at the middle of the load line, an increase in the base resistance will move the Q point
Options
A. down
B. up
C. nowhere
D. off the load line
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: down
9. In a step-down transformer, which is larger?
Options
A. Primary voltage
B. Secondary voltage
C. Neither
D. Impossible to say
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: Primary voltage
10. The basic unit of measurement for current is the:
Options
A. volt
B. watt
C. ampere
D. ohm
E. None of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: ampere
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