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

Question

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Accepted Answer

The dim indication on the logic probe indicates that the supply voltage is probably low.

Answer

The output of the gate appears to be open.

Answer

The LOW indication is the result of a bad ground connection on the logic probe.

Answer

The gate is a tri-state device.