In which of the following, output is similar to NAND gate if input A=0 and input B = 1.
Correct answer: C. XOR.
- A. NOR.
- B. XNOR.
- C. XOR.
- D. Both B and C.
Explanation
In logic gates, a NAND gate produces an output of 1 unless both inputs are 1. For inputs A=0 and B=1, the NAND gate outputs 1. An XOR gate outputs 1 when the inputs are different, which they are in this case (A=0, B=1), resulting in the same output as the NAND gate. Other gates like NOR and XNOR do not match this behavior with the same inputs.
This question appeared on the UHS MDCAT 2008 paper, which you can sit online with every answer explained.
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A PN junction forms when p type and n type semiconductor regions meet, creating a depletion layer and a potential barrier. The topic covers forward and reverse bias, diode current voltage characteristics, breakdown and rectification, while distinguishing an ordinary junction diode from a transistor formed from multiple junctions.
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