While using a frequency counter for measuring frequency, two modes of measurement are possible. 1. Period time 2. Frequency mode There is a ‘cross-over frequency’ below which the period mode is preferred. Assuming the crystal oscillator frequency to be 4Mhz the crossover frequency is given by

Digital Electronics
While using a frequency counter for measuring frequency, two modes of measurement are possible. 1. Period time 2. Frequency mode There is a ‘cross-over frequency’ below which the period mode is preferred. Assuming the crystal oscillator frequency to be 4Mhz the crossover frequency is given by

2 Khz

8 Mhz

2 Mhz

1 Khz

2 Khz

8 Mhz

2 Mhz

1 Khz

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Digital Electronics
What is the minimum number of NOR gates required realizing an X-OR gating?

5

4

3

6

5

4

3

6

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Digital Electronics
In K-map simplification, a group of four adjacent 1s leads to a term with

two literals less than the total number of variables

four literals less than the total number of variables

three literals less than the total number of variables

one literal less than the total number of variables

two literals less than the total number of variables

four literals less than the total number of variables

three literals less than the total number of variables

one literal less than the total number of variables

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Digital Electronics
If J = K (J and K are shorted) in a JK flip-flop, what circuit is made

Shorted JK flip-flop

K flip-flop

T flip-flop

SR flip-flop

Shorted JK flip-flop

K flip-flop

T flip-flop

SR flip-flop

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Digital Electronics
An X-OR gate gives a high output

if there are odd number of 1s

if the decimal value of digital word is even

for odd decimal value.

if it has even number of 0s

if there are odd number of 1s

if the decimal value of digital word is even

for odd decimal value.

if it has even number of 0s

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Digital Electronics
The number of cells in a 6 variable K-map is

64

6

36

12

64

6

36

12

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Digital Electronics

Digital Electronics What is the minimum number of NOR gates required realizing an X-OR gating?

Digital Electronics In K-map simplification, a group of four adjacent 1s leads to a term with

Digital Electronics If J = K (J and K are shorted) in a JK flip-flop, what circuit is made

Digital Electronics An X-OR gate gives a high output

Digital Electronics The number of cells in a 6 variable K-map is

Digital Electronics
What is the minimum number of NOR gates required realizing an X-OR gating?

Digital Electronics
In K-map simplification, a group of four adjacent 1s leads to a term with

Digital Electronics
If J = K (J and K are shorted) in a JK flip-flop, what circuit is made

Digital Electronics
An X-OR gate gives a high output

Digital Electronics
The number of cells in a 6 variable K-map is