Physics · Semiconductors, semiconductor diode: I-V characteristics in forward and reverse bias, diode as a rectifier
Which of the following is unipolar transistor?
Which of the following is unipolar transistor?
- A. p-n-p transistor
- B. n-p-n transistor
- C. Field effect transistor
- D. Point contact transistor
Step-by-step solution
Bipolar junction transistors (BJT), such as p-n-p and n-p-n, use both electrons and holes as charge carriers, making them bipolar. Point contact transistors are also bipolar. Field effect transistors (FET) rely on only one type of charge carrier (either electrons or holes), hence they are unipolar.