Q. Name of a $p$-$n$ junction, which can be used as the regulator, is
A) Zener diode
B) Tunnel diode
C) Gunn diode
D) None of these
Explanation
(a) Zener diode has a relatively constant voltage across it, regardless of the value of current through the device. This permits the zener diode to be used as a voltage regulator.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.