ISRO | ISRO CS 2013 | Question 30
In a three stage counter, using RS flip flops what will be the value of the counter after giving 9 pulses to its input? Assume that the value of counter before giving any pulses is 1.
Explanation: In a three stage counter, using RS flip flops, the value of counter will return to initial stage after 8 pulses and in the 9th pulse, the counter stage will exceed by 1.
Initial value of counter = 1 After 8 pulses : 1-> 2-> 3-> 4-> 5-> 6 -> 7-> 0-> 1 After 9th pulse: 1-> 2
Option (B) is correct.
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