Dictionary.com

bipolar transistor

Save This Word!

A type of transistor made of three layers of semiconductors. Each layer has been treated so that the layer in the middle (called the base) has an inherent electric charge, while the layers around it (the emitter and collector) have an inherent opposite charge. A bipolar transistor with a negative base is designated PNP, and one with a positive base is designated NPN. When subjected to current flow, the base acts like a gate, enhancing or inhibiting the current flow from the emitter to the collector. Bipolar transistors are used primarily to amplify or switch current signals, and are common in audio equipment. Compare field effect transistor.
QUIZ
WILL YOU SAIL OR STUMBLE ON THESE GRAMMAR QUESTIONS?
Smoothly step over to these common grammar mistakes that trip many people up. Good luck!
Question 1 of 7
Fill in the blank: I can’t figure out _____ gave me this gift.

Words nearby bipolar transistor

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

How to use bipolar transistor in a sentence

FEEDBACK