The question is as follows:
Correct answer: C. XOR gate
- A. NAND
- B. NOR gate
- C. XOR gate
- D. NOT gate
Explanation
This is the correct answer. The expression X = AB + AB represents a XOR gate. In a XOR gate, the output is the complement of the logical OR operation on its inputs. The given expression effectively indicates that the output X is the complement of the OR operation between A and B.
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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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