The author Mr H. C. Rajpoot (Master of Technology at I.I.T. Delhi) has derived numerous mathematical formula used to analytically compute the strength of magnetic field produced by (point or uniformly distributed) electric charge rotating at a constant angular speed about a given axis. The author has derived and proposed a generalized mathematical formula (i.e. HCR's formula for Electromagnetism) by using Biot-Savart Law. HCR's formula is used to derived various mathematical formulaThis book has variety of articles related to the electric charge concentrated as well as uniformly distributed over straight line-segments, curved lines, plane surfaces, curved surfaces and throughout a solid body. All the articles discussed in this book are unique and related to Electromagnetism which is an important branch of Physics.