Concept explainers
Two basic types of transistor.
Explanation of Solution
Transistors are classified on the basis of the majority charge carriers present in the parts of the transistor. The three parts of transistor are emitter, collector and base. The base situated between collector and emitter. If the collector has majority charge carriers as electrons, base has holes and emitter has electrons as majority charge carriers then such a transistor is named as NPN transistor.
If the majority charge carriers in collector and emitter are holes and majority charge carriers in base are electrons, such a transistor is named as PNP transistor. According to the usage of P-type or N-type semiconductor in emitter, collector and base, transistor is classified as NPN or PNP transistors. Therefore, NPN transistors and PNP transistors are the two fundamental types of transistors.
Want to see more full solutions like this?
Chapter 48 Solutions
Understanding Motor Controls
- Which type of semiconductor material can withstand the greatest amount of heat?arrow_forwardWhat polarity must be connected to the collector, base, and emitter of a PNP transistor to make it forward biased?arrow_forwardHow many layers of semiconductor material are used to construct an SCR?arrow_forward
- How can a silicon diode be made to measure temperature?arrow_forwardIn a zener diode circuit, the current-limiting resistor limits the total circuit current to 150 milliamperes. If the load circuit is drawing a current of 90 milliamperes, how much current is flowing through the zener diode?arrow_forwardAll electronic components are formed from P-type and N-type materials. What factors determine the kind of components formed?arrow_forward
- Understanding Motor ControlsMechanical EngineeringISBN:9781337798686Author:Stephen L. HermanPublisher:Delmar Cengage LearningRefrigeration and Air Conditioning Technology (Mi...Mechanical EngineeringISBN:9781305578296Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill JohnsonPublisher:Cengage LearningAutomotive Technology: A Systems Approach (MindTa...Mechanical EngineeringISBN:9781133612315Author:Jack Erjavec, Rob ThompsonPublisher:Cengage Learning
- Electrical Transformers and Rotating MachinesMechanical EngineeringISBN:9781305494817Author:Stephen L. HermanPublisher:Cengage Learning