A NOR gate is ON only when its inputs are:
Correct answer: D. OFF
- A. ON
- B. Positive
- C. High
- D. OFF
Explanation
This is the correct answer. A NOR gate is ON, meaning it produces an output of 1, when its inputs are both LOW (0). If either or both of its inputs are low, the NOR gate's output will be high (1).
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About Alternating Current
Alternating current varies periodically, so phase relationships become essential when current passes through a resistor, capacitor or inductor. The chapter distinguishes resistance from capacitive and inductive reactance, explains phase lead and lag, and connects changing electric and magnetic fields with the production and properties of electromagnetic waves.
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