ABSTRACT
This chapter concerns the principles and laws governing electromagnetic induction and the concepts of self and mutual inductance.
On completion of the chapter, you should be able to use these principles to:
1 Explain the basic operating principles of motors and generators. 2 Carry out simple calculations involving the generation of voltage, and the produc-
tion of force and torque. 3 Appreciate the significance of eddy current loss. 4 Determine the value of inductors, and apply the concepts of self and mutual
inductance to the operating principles of transformers. 5 Calculate the energy stored in a magnetic field. 6 Explain the principle of the moving coil meter, and carry out simple calculations for
the instrument. 7 Describe the operation of a wattmeter and simple ohmmeter.
