In the DC circuits section, many students fail because they memorize theorems without practice. Use a notebook to redraw the circuits. The PDF allows zooming into complex nodes—use that feature.
If you are interested in downloading the PDF of "Principles of Electrical Engineering and Electronics" by V.K. Mehta, you can search for it online. However, be sure to check the authenticity of the source and ensure that you are downloading the PDF from a legitimate website. In the DC circuits section, many students fail
Generation of alternating voltage, RMS value, average value, and phasor diagrams. In the DC circuits section
: Detailed sections on D.C. generators, motors, transformers, alternators, and induction motors. and induction motors.