Electronics and Communication Engineering - Digital Electronics

46. 

The contents of the program counter after the call operation will be

A. (30F0)H
B. (40F0)H
C. (50F0)H
D. (60F0)H

Answer: Option A

Explanation:

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47. 

Which is correct with respect to computer memory?

A. Only a particular address can have a particular memory
B. Any address can have any memory
C. To read a word from computer memory, it is not necessary to specify a location
D. None of the above

Answer: Option B

Explanation:

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48. 

A 3 bit binary adder should use

A. 3 full adders
B. 2 full adders and 1 half adder
C. 1 full adder and 2 half adders
D. 3 half adders

Answer: Option B

Explanation:

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49. 

For a depletion type NMOS, Vp = - 4 volts. For VGS = 0, 1D = 16 mA in the pinch off region of VDS. For VGS = - 2, the value of ID in the pinch off region of VDS is given by

A. 64 mA
B. 32 mA
C. 16 mA
D. 4 mA

Answer: Option D

Explanation:

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50. 

The two outputs of RS flip-flop are

A. always low
B. always high
C. either low or high
D. always complementary

Answer: Option D

Explanation:

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