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Electronics
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Logic Gates
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Question
A NAND gate has:
Options
A. LOW inputs and a LOW output
B. HIGH inputs and a HIGH output
C. LOW inputs and a HIGH output
D. None of the these
Correct Answer
LOW inputs and a HIGH output
Logic Gates problems
Search Results
1. How many truth table entries are necessary for a four-input circuit?
Options
A. 4
B. 8
C. 12
D. 16
Show Answer
Scratch Pad
Discuss
Correct Answer: 16
2. How many NAND circuits are contained in a 7400 NAND IC?
Options
A. 1
B. 2
C. 4
D. 8
Show Answer
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Discuss
Correct Answer: 4
3. If a signal passing through a gate is inhibited by sending a low into one of the inputs, and the output is HIGH, the gate is a(n):
Options
A. AND
B. NAND
C. NOR
D. OR
Show Answer
Scratch Pad
Discuss
Correct Answer: NAND
4. When an input delta of 2 V produces a transconductance of 1.5 mS, what is the drain current delta?
Options
A. 666 mA
B. 3 mA
C. 0.75 mA
D. 0.5 mA
Show Answer
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Discuss
Correct Answer: 3 mA
5. How will electrons flow through a p-channel JFET?
Options
A. from source to drain
B. from source to gate
C. from drain to gate
D. from drain to source
Show Answer
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Correct Answer: from drain to source
6. The basic logic gate whose output is the complement of the input is the:
Options
A. OR gate
B. AND gate
C. INVERTER gate
D. comparator
Show Answer
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Discuss
Correct Answer: INVERTER gate
7. Exclusive-OR (XOR) logic gates can be constructed from what other logic gates?
Options
A. OR gates only
B. AND gates and NOT gates
C. AND gates, OR gates, and NOT gates
D. OR gates and NOT gates
Show Answer
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Discuss
Correct Answer: AND gates, OR gates, and NOT gates
8. A single transistor can be used to build which of the following digital logic gates?
Options
A. AND gates
B. OR gates
C. NOT gates
D. NAND gates
Show Answer
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Discuss
Correct Answer: NOT gates
9. The logic gate that will have HIGH or "1" at its output when any one of its inputs is HIGH is a(n):
Options
A. OR gate
B. AND gate
C. NOR gate
D. NOT gate
Show Answer
Scratch Pad
Discuss
Correct Answer: OR gate
10. What input values will cause an AND logic gate to produce a HIGH output?
Options
A. At least one input is HIGH.
B. At least one input is LOW.
C. All inputs are HIGH.
D. All inputs are LOW.
Show Answer
Scratch Pad
Discuss
Correct Answer: All inputs are HIGH.
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