An electromagnet is composed of a coil of wire wound around a core of a soft iron.
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 is the capacity to get work done, measured in Joules (J).
The arrangements of electrons into definite shells around the nucleus of an atom.
The field of force surrounding any charged body.
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.
The ratio of the useful power output to the total power input.
Electric power used by devices connected to an electrical generating system.
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.
The conductor radius r multiplied by e-1/4 (i.e., re-1/4) where e is the base of the natural logarithm.
A group of components that use voltage, current, and resistance to perform a function in a closed path.
It is the ratio of output power (POUT) to the input power (PIN).