Electronics and Communication Engineering - Digital Electronics

36. 

A TTL circuit with totem pole output has

A. high output impedance
B. low output impedance
C. very high output impedance
D. none of the above

Answer: Option B

Explanation:

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

37. 

The main drawbacks of EEPROM are

A. low density
B. high cost
C. both low density and high cost
D. none of the above

Answer: Option C

Explanation:

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

38. 

How many JK flip-flops are needed to make a 4-bit shift register?

A. 2
B. 4
C. 6
D. 8

Answer: Option B

Explanation:

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

39. 

A 10 MHz square wave clocks 5 bit ripple counter. The frequency of the 3rd FF output is

A. 2 MHz
B. 1.25 MHz
C. 50 MHz
D. 615 kHz

Answer: Option B

Explanation:

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

40. 

The radix of a hexadecimal system is

A. 2
B. 3
C. 8
D. 16

Answer: Option D

Explanation:

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