Digital Electronics - ECE Questions and Answers

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

The access time of ROM using bipolar transistors is about

1 sec

1 mili sec

1 μ sec

1 n sec

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

In LIFO

only the top of the stack is immediately accessible

only the top of the stack is never accessible

only the first-in is accessible

only the first-in is not accessible

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

10 in BCD code represent

10100

1100

010111

None of the above

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

In RAM, all the information can be obtained at the output with

minimum time delay

unequal time delay

nearly identical time delay

maximum time delay

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

A 1 ms pulse can be converted into a 10 ms pulse by using which one of the following

An astable multivibrator

Stable multivibrator

A bistable multivibrator

A J-K flip-flop

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

In the DRAM cell in the figure is the V_t of the NMOSFET is 1 V. For the following three combinations of WL and BL voltages.

5 V, 3 V, 7 V

4 V, 3 V, 4 V

5 V, 5 V, 5 V

4 V, 4 V, 4 V

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

Assertion (A): The carry look ahead adder is very fast

Reason (R): The carry look ahead adder generates the carry and sum digits directly.

Both A and R are correct and R is correct explanation of A

Both A and R are correct but R is not correct explanation of A

A is true, R is false

A is false, R is true

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

The factors which govern fan out of CMOS gates are

maximum permissible propagation delay

input capacitance of each load

both (a) and (b)

neither (a) nor (b)

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

Which of the following subtraction operations do not result in F₁₆?

(BA)₁₆ - (AB)₁₆
(BC)₁₆ - (CB)₁₆
(CB)₁₆ - (BC)₁₆
(CB)₁₆ - (BC)₁₆

Select the correct answer

1 and 2

1 and 3

2 and 3

1, 2 and 3