Detailed records of various experiments conducted including studying the VI characteristics of PN junction and Zener diodes, verifying Kirchhoff’s laws for DC circuits, and analyzing the functioning of half-wave and full-wave rectifiers. Each experiment section comprises the aim, theoretical background, required apparatus, detailed procedures, circuit diagrams, observation tables, and results with inferences. The record meticulously documents the experimental steps and outcomes, ensuring comprehensive understanding and analysis of fundamental concepts.