Q. Different voltages are applied across a $P$-$N$ junction and the currents are measured for each value. Which of the following graphs is obtained between voltage and current

A) [image:14_image55.png]
B) [image:14_image56.png]
C) [image:14_image57.png]
D) [image:14_image58.png]
Explanation

(c) $PN$ junction has low resistance in one direction of potential difference $+ V$, so a large current flows (forward biasing). It has a high resistance in the opposite potential difference direction $- V$, so a very small current flows (reverse biasing)

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.

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