Semiconductor – is a material whose resistivity is between that of a good conductor and a good insulator.
Intrinsic Conduction – is the movement of charges through a pure semiconductor.
Extrinsic Conduction – is the movement of charges through a doped semiconductor.
Doping – is the addition of a small amount of atoms of another element to a pure semiconductor to increase its conductivity.
n-type semiconductor – is a semiconductor in which electrons are the majority charge carriers.
p-type semiconductor – is a semiconductor in which holes are the majority charge carriers.
Ampere – is that current which, if flowing in two, infinitely long parallel wires, of negligible cross-sectional area, one metre apart, in a vacuum, experiences a force of 2 x 10-7 N per metre.
Electromagnetic Induction – When a conductor cuts a magnetic flux an emf is induced.
Faraday’s Law – states that the size of the induced emf is proportional to the rate of change of flux.
Lenz’s Law – states that the direction of the induced emf is always such as to oppose the change producing it.
Magnetic Flux – is the product of Flux Density by Area.