Let's explore the three different behaviours the transistor exhibits. These are pretty important for electronic engineers to design any circuit with transistors. Learn the next topic here --https://www.khanacademy.org/science/in-in-class-12th-physics-india/in-in-semiconductors/in-in-transistor-as-a-device/v/transistor-voltage-amplifier-class-12-india-physics-khan-academy?modal=1 Class 12 Semiconductors: We cannot imagine our life without computers today. But what makes a computer tick? What's making this technology grow at such an exponential rate? It's all due to semiconductors. As unbelievable as that might sound, altering the properties of semiconductors allows us to build these computers. In this topic, we will explore the world of semiconductors. It's a journey from what semiconductors are all the way to creating building blocks of these computers. Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Created by Mahesh Shenoy