In an Optoisolator, a ____ Is Used to Trigger a Phototransistor

question 5

Multiple Choice

In an optoisolator, a ____ is used to trigger a phototransistor.

• A) light-emitting diode
• B) transistor
• C) rectifier
• D) rheostat

---

Definitions:

Price Level

Price level is the average of current prices across the entire spectrum of goods and services produced in the economy, used to measure inflation or deflation.

Aggregate Supply Curve

An illustrative chart that demonstrates the aggregate supply of goods and services that producers within an economy are prepared to provide at varying prices.

Aggregate Demand Curve

The Aggregate Demand Curve represents the total amount of goods and services demanded across all levels of an economy at various price levels.

Aggregate Demand Curve

Represents the total demand for goods and services within an economy at different price levels, assuming all other factors remain constant.