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AND Gates Tutorial

2018-01-25 16:01  
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Before reading this page read the one on LOGIC GATES.

The AND gate has two or more inputs and one output.

The output voltage goes high only when all input voltages are high.

In the switch diagram the lamp lights up only when AandB are operated. If only one is switched then the lamp stays off.

In the truth table Z = 1 only when AandB = 1.

The Boolean expression is A. B = Z which translated says, A and B both high, makes Z high.


Truth Table Diagram

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