Electromagnet
An electromagnet is composed of a coil of wire wound around a core of a soft iron.
Electron
A negatively charged subatomic particle with much less mass than a proton but with a charge equal and opposite to the charge of a proton.
Energy
Energy is the capacity to get work done, measured in Joules (J).
Energy Bands
The arrangements of electrons into definite shells around the nucleus of an atom.
Electrostatic Field
The field of force surrounding any charged body.
Economic dispatch
The distribution of total generation requirements among alternative sources for optimum system economy, with due consideration of both Incremental generating costs and incremental transmission losses.
Efficiency
The ratio of the useful power output to the total power input.
Electrical load
Electric power which is consumed by various appliances connected to a power source.
Electromotive force (emf)
A voltage produced in a closed path or circuit by the relative motion of the circuit or its parts with respect to magnetic flux.
Equivalent radius
The conductor radius r multiplied by e-1/4 (i.e., re-1/4) where e is the base of the natural logarithm.
Electric circuit
A group of components that use voltage, current, and resistance to perform a function in a closed path.
Efficiency
It is the ratio of output power (POUT) to the input power (PIN).
