# Electronics and Communication Engineering - Digital Electronics

36.

 A. 0 to 1 V B. 0 to 5 V C. 5 to 15 V D. 15V to 30V

Explanation:

No answer description available for this question. Let us discuss.

37.

Assertion (A): The propagation delay in ECL is minimum

Reason (R): Transistors used in ECL switch between active and cutoff regions.

 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

Explanation:

Since saturation is avoided switching speed is high.

38.

For the design of a sequential circuit having 9 states, minimum number of memory elements required is

 A. 3 B. 4 C. 5 D. 9

Explanation:

23 = 8 and 24 = 16. Hence minimum of 4 memory elements.

39.

ICs are

 A. analog B. digital C. both analog and digital D. mostly analog

Explanation:

Op-amp is an analog IC.

40.

In a 5 x 7 dot matrix, format, to store 64 alphanumeric characters we require

 A. 1120 bits B. 2240 bits C. 33 bits D. 64 bits

Explanation:

No answer description available for this question. Let us discuss.