Q.
In a $p$-$n$ junction diode, a square input signal of 10 V is applied as shown in figure. The output signal across $R_{L}$ will be
A) [image:14_image65.emf]
B) [image:14_image66.emf]
C) [image:14_image67.emf]
D) [image:14_image68.emf]
Explanation
(b) For this purpose we use three NAND gates in manner as shown. The first two NAND gates are operated as NOT gates and their output are fed to the third. The resulting circuit is OR gate.
[image:14_image226.jpeg]
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.