As shown in figure "1" of the illustration,...

🔍 Key Concepts

• Notice the orientation of the diodes in figure 1 (which side is toward +V and which side is toward the inputs). • Think about how a pull‑up resistor to +V works when nothing is conducting versus when a diode becomes forward‑biased. • Relate the resulting truth table (for Y vs. A and B) to the standard definitions of AND gate and OR gate and note that this circuit uses only diodes and a resistor (no transistor).

💭 Think About

• If A is HIGH and B is LOW, which path will current take through the diodes, and will the output Y be pulled HIGH or LOW? • Under what input condition(s) will none of the diodes conduct and the pull‑up resistor alone determine Y? Compare that condition to the truth tables of AND and OR. • Does this circuit’s behavior match the gate that outputs 1 only when both inputs are 1, or the gate that outputs 1 when either input is 1?

✅ Before You Answer

• Be sure you can sketch the truth table for Y for all four input combinations (A,B) = 00, 01, 10, 11. • Confirm whether any transistor symbol is present in figure 1; that immediately eliminates some answer choices. • Verify that the logic family name: "diode logic" versus "resistor transistor logic" (RTL), matches the actual components used in the figure.

As shown in figure "1" of the illustration, which statement is true? See illustration EL-0099.

The circuit is an AND logic gate using diode logic.

The circuit is an OR logic gate using diode logic.

The circuit is for an AND gate using resistor transistor logic.

The circuit is for an OR gate using resistor transistor logic.

🔍 Key Concepts

💭 Think About

✅ Before You Answer