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Combinational Logic Circuits - Technical MCQs

Q1:

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.

ANS:A - The output of the gate appears to be open.

No answer description is available.