Digital Electronics - Combinational Logic Circuits - Discussion

27. 

A logic probe is placed on the output of a gate and the display indicator is dim. A pulser is used on each of the input terminals, but the output indication does not change. What is wrong?

[A]. The output of the gate appears to be open.
[B]. The dim indication on the logic probe indicates that the supply voltage is probably low.
[C]. The dim indication is a result of a bad ground connection on the logic probe.
[D]. The gate may be a tristate device.

Answer: Option A

Explanation:

No answer description available for this question.

Mitesh Patel said: (Jul 16, 2016)  
Can anybody explain?

Rushi said: (Jul 29, 2016)  
Why the gate can't be tri-stated? please explain.

Ashwani Dwivedi said: (Jul 25, 2017)  
Why not C? Explain please.

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