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A 4-bit ripple UP counter is having a count 0110. What will be the count after 20 clock pulsesa.0101b.1111c.0100d.1010

Question

A 4-bit ripple UP counter is having a count 0110.

What will be the count after 20 clock pulses?

Options:

  • a. 0101
  • b. 1111
  • c. 0100
  • d. 1010
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Solution

The current count is 0110 which is 6 in decimal. After 20 clock pulses, the count will be 6 + 20 = 26. However, a 4-bit counter can only hold values from 0 to 15 (2^4 - 1). So, when it reaches 16, it will roll over and start from 0 again.

So, we need to find out what the counter will be after it rolls over. This can be done by finding the remainder of 26 divided by 16 (the maximum count + 1).

26 mod 16 = 10

So, the counter will be at 10 after 20 clock pulses.

10 in binary (4-bit) is 1010.

So, the answer is d. 1010.

This problem has been solved

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