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Digital Electronics - Logic Gates

Exercise : Logic Gates - Filling the Blanks
6.
A 2-input gate that can be used to pass a digital waveform unchanged at certain times and inverted at other times is a(n) ________.
AND gate
OR gate
NAND gate
XOR gate
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.

The gates in this figure are implemented using TTL logic. If the output of the inverter has an internal open circuit, what voltage would you expect to measure at the inverter's output?

Less than 0.4 V
1.6 V
Greater than 2.4 V
All of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
When does the output of a NAND gate = 1?
Whenever a 0 is present at an input
Only when all inputs = 0
Whenever a 1 is present at an input
Only when all inputs = 1
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
The number of input combinations for a 4-input gate is ________.
9
8
15
16
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
When does the output of a NOR gate = 0?
Whenever a 0 is present at an input
Only when all inputs = 0
Whenever a 1 is present at an input
Only when all inputs = 1
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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