International Journal of Electrical Engineering & Education

The efficacy of two different personal support systems for first year undergraduates are compared subjectively and statistically. The response analysis reveals the nature and magnitude of problems experienced in one department and the sources of solutions. Both problems and examination failures were fewer under one of the two systems described.

A simple apparatus is described for students to measure electromagnetic force, calculate flux, reluctance of composite circuit and plot the B-H curves of magnetic materials. Only an ammeter and spring balance are handled and the results are comparable to more involved measurements.

The undergraduate treatment of steady state synchronous machine performance by power/rotor angle characteristics is extended to include a physical concept of the operation of a machine with automatic voltage regulator control.

This survey was initiated to ascertain the emphasis given to these topics in their undergraduate and graduate curricula. The research activity and the text books used have been included in the survey.

The theoretical behaviour of ferrite rod aerials is discussed in relation to generalized aerial theory. It is shown that the concept of dipole length provides a direct approach to the derivation of a simple and useful equivalent circuit.

This paper shows how a computer graphics terminal can be used as an aid to teaching root locus still a powerful method of system synthesis and evaluation, by allowing the student to interact with the program. Sensitivity information is an important by-product of the implementation.

In recent years, many renowed physicists have emphasized relativity when introducing their students to electromagnetic theory. This is an excellent way to present electromagnetic concepts not only to future physicists but also to future electrical engineers. The present paper outlines some difficulties in the classical approach that may be overcome by using concepts of special relativity.

In this work some proofs of Thomson's theorem are discussed. Attention is focused on some points which seem to be disregarded by some authors. In this way a more thorough comprehension of the physical situation involved is gained.

A general method of solving d.c. network problems by constructing graphically the electrical characteristics of the circuit components is developed. This graphical technique, which has not previously been fully utilized, is shown to be an alternative to the well-known algebraic techniques. The method is illustrated with standard network examples.

Breaking up the common connection at the input side, a parallel ladder network can be converted to a multiple input one. Repeated application of Thevenin's theorem then eases the analysis, which can be done quickly and almost by inspection.

The presence of field components along a third axis does not prevent the application of planar conformal transformation techniques. Some complications are introduced in that the characteristics of the media are altered in the model, but in many cases this poses no major difficulties.