Difference between revisions of "Electrical Heater"

Revision as of 09:43, 3 March 2019

The symbol for an electrical heater.

A heater is a component in a circuit which is heated when a current goes through it.

Heaters are usually long lengths of wire which a high resistance.

As a current passes through a wire electrons in the current collide with ions in the metal lattice causing them to vibrate. This increases the temperature of the wire.

In an electrical heater electrical work is done to heat an object or the surroundings.

@@ Line 7: / Line 7: @@
 : '''Heaters''' are usually long lengths of [[wire]] which a high [[Electrical Resistance|resistance]].
 : As a [[Electrical Current|current]] passes through a [[wire]] [[electron]]s in the [[Electrical Current|current]] [[collide]] with [[ion]]s in the [[metal]] [[lattice]] causing them to [[vibrate]]. This increases the [[temperature]] of the [[wire]].
+===Energy Transfers===
+: In an '''electrical heater''' [[Work Done#Work Done by Electricity|electrical work]] is done to [[heat]] an [[object]] or the surroundings.
+: [[Energy]] is [[Energy Transfer|transferred]] into the [[Thermal Energy Store|thermal energy store]] of the '''heater'''.
+: [[Energy]] is [[Energy Transfer|transferred]] by [[Thermal Conduction|thermal conduction]], [[convection]] and by [[radiation]] to the [[Thermal Energy Store|thermal energy store]] of the surroundings.