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Logic Gates

Q1:

A clock signal with a period of 1 s is applied to the input of an enable gate. The output must contain six pulses. How long must the enable pulse be active?

A Enable must be active for 0 s.

B Enable must be active for 3 s.

C Enable must be active for 6 s.

D Enable must be active for 12 s.

ANS:C - Enable must be active for 6 s.

1 pulse dosen't mean a positive half part.
It means a complete period of pulse. So if output needs 6 pulses the enable need to be active for 6 times i.e 6*1us.



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