Digital Electronics - ECE Questions and Answers

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

A 16:1 multiplexer has 4 select input lines.

True

False

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

Which one of the following can be used as parallel to series converter?

Decoder

Digital counter

Multiplexer

Demultiplexer

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

What will be conversion time of a successive approximation A/D converter which uses 2 MHz clock and 5 bit binary ladder containing 8 V reference.?

2.5 μ sec

25 μ sec

3 μ sec

4 μ sec

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

A 4 bit down counter can count from

0000 to 1111

1111 to 0000

000 to 111

111 to 000

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

Assertion (A): In computers the data is stored in hexadecimal form

Reason (R): Hexadecimal representation is short as compared to binary representation.

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

For the circuit of the given figure, the output equation is

Y = ABCD

Y = AB + CD

Y = A + BCD

Y = ABC + D

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

Using 2's complement, the largest positive and negative number which can be stored with 8 bits are

+128 and -127

+128 and -128

+127 and -128

+127 and -127

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

Three Mod-16 counters are connected in cascade. The maximum counting range is

256

4096

none of the above

Whatsapp
Facebook
Copy
Copy Text
Copy
Copy URL

TTL is used in electronic calculators.

True

False