A free app for Android, by Skedsoft.
This is a digital version of your analog book. It is a free app that contains over 100 topics and units. You can use it for both offline and online study. It also contains a list of some of the most useful formulas that an electrical engineer needs to know.
It contains formulas and equations that are used to solve problems. You will find formulas for voltage, current, resistance, capacitance, power, frequency, phase, and many more.
There are also topics about the circuit, such as the difference between open, neutral, and closed circuits, as well as what we mean by "power" and "energy." You will learn how to calculate resistance, reactance, and admittance, and how to solve problems with voltage and current.
You will also learn about electrical machines, such as the electric motor, electric generator, electric circuit, and many more.
