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Electrical Engineering Formulas

Electromagnetism

The theoretical foundation for EE is electromagnetism. The theory of classical electromagnetism is based on Maxwell’s equations, which provide a unified description of the behavior of electric and magnetic fields as well as their interactions with matter.

In practice however, circuit designers normally use simplified equations of electricity and magnetism and theorems that use circuit theory terms, such as Ohm’s law modified for AC circuits, voltage and current Kirchoff’s laws, and power relationships.

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1. s.sunil kirodiwal
Nov 28, 2020

this will be of a tremendous help to me kindly give slip ring induction motor winding data formula

2. Subrata Kumar Bera
Jun 21, 2019

Please send daily on electrical engg. topics

3. manoj kumar panday
Oct 15, 2018

i need electrical mourmula book

4. R.Prabhakar Rao
Nov 07, 2015

We need data of electrical engineering for giving training.

5. javed Sutar
Jun 25, 2014

Why efficiency is considered while calculating current from HP? Efficiency is not considered when KW used.

• J N Karamchetti
Feb 15, 2016

Capacity of motors (HP) is the out put of the motor. So input (kW) to motor is Out put/ Efficiency of Motor. So current (AMP) of motor = KW / Voltage (1 Ph) or kW / ((sqrt3)*Voltage* PF) (3 Ph).

6. vasanth
Feb 15, 2014

7. r sarwa
Oct 20, 2012

pls, post a guide for electrical unit and their conversion

• Edvard
Oct 22, 2012

There must be conversion included in some of the already available guides, but I’ll try to get something!

8. reman130488
Dec 27, 2011

the document is corrupt. plz check document

9. samuel
May 30, 2011

This will be of a tremendous help to me

• Edvard
May 30, 2011

Glad you like it! If you have any suggestion regarding electrical formulas, you can post it here.

BR