Definition

A type of electronic component that can detect light and convert it into an electrical signal.

Example

The phototransistor is commonly used in light sensors and optical communication devices.

Conversation

Have you ever heard of a phototransistor?

Yeah, I think it's used in a lot of light-detecting applications.

Exactly! It’s fascinating how a phototransistor can change its electrical characteristics with light.

I know, right? It’s amazing how technology can be so responsive to the environment.

Synonyms & Antonyms

Root Explanation

Phototransistor → It is formed from "photo-" (from Greek "phōs", meaning light) and "transistor" (from Latin "trans" meaning across and "sistere" meaning to stand). The word refers to a device that stands or operates across light, converting light signals into electrical signals.

Memory Tip

Think of 'light' ('photo-') being converted into electrical signals by a device that 'stands across' ('transistor') to process that light.

Visually Confused Words