Electronics and Communication Engineering - Digital Electronics

6. 

A depletion type NMOS is operated in enhancement mode. Vp = - 4 volts. For VGS = + 3 volts as VDS is increased, ID becomes nearly constant when Vps equals

A. 1 volt
B. 3 volts
C. 4 volt
D. 7 volts

Answer: Option D

Explanation:

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7. 

Which one of the following is D/A conversion technique?

A. Successive approximation
B. Weighted resistor
C. Dual slope
D. Single slope

Answer: Option B

Explanation:

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8. 

Assuming accumulator contain A 64 and the carry is set (1). What will accumulator (A) and carry (CY) contain after ANA A?

A. A 6 H, 1
B. A 6 H, 0
C. 00 H, 0
D. 00 H, 1

Answer: Option B

Explanation:

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9. 

A number is expressed in binary 2's complement as 10011 decimal equivalent value is

A. 19
B. 13
C. -19
D. -13

Answer: Option D

Explanation:

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10. 

In INHIBIT operation

A. output is 1 when both inputs are 0
B. output is 0 when blocking input is 1
C. output is 0 when blocking input is 0
D. output is 1 when blocking input is either 0 or 1

Answer: Option B

Explanation:

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