Consider two npn transistors as shown in figure. If 0 volts corresponds to false and 5 volts correspond to true then the output at C correspond to true then the output at C corresponds to:
A
ANANDB
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B
AORB
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C
A and B
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D
ANORB
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Solution
The correct option is AANANDB There are two individual NOT gates and when they combine they form a NAND gate.