conductor - Electrons are free to move through these., Insulator - Electrons are not free to move through these., charge - A property that results in a force being exerted and experienced when placed in an electric field.  , current - The electric charge transferred per unit time - the rate of flow of electric charge., alternating current (a.c.) - The current constantly changes its value and changes direction at regular time intervals flowing first one way then the other., direct current (d.c.) - A continuous, steady current flowing in one direction only., potential difference (voltage) - A measure of the energy given to the electrons. , resistance - The opposition to the flow of a current in a circuit., Ohm’s law - The current flowing through a conductor is directly proportional to the potential difference (voltage) across it at a constant temperature within the conductor itself., series circuit - A circuit in which the current has only one path to flow through and follow., parallel circuit - A circuit in which the current has more than one path to flow through and follow., potential (voltage) divider - These are used to split a potential difference (voltage).  , transistor - This can be used as an electronic switch - it has three connections called the emitter, base and collector., threshold voltage - The potential difference (voltage) required to switch on a transistor and is 0·7 V or above., power - The rate at which appliances transform energy (change it from one form to another)., energy - A measure of the ability of a system to do work. ,

National 5 Physics Electricity Definitions

by
Print
Embed

Leaderboard

Visual style

Options

Switch template

Continue editing: ?