Two ideal diodes have anodes joined at output Y and cathodes connected to positive-logic inputs A and B. A resistor pulls Y to +V. The circuit behaves as:
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Question

Two ideal diodes have anodes joined at output Y and cathodes connected to positive-logic inputs A and B. A resistor pulls Y to +V. The circuit behaves as:

G1 Physics · Accepted Answer

Any LOW input conducts and clamps Y LOW. Only when both inputs are HIGH does the pull-up make Y HIGH: AND logic.