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What is the characteristic of a diode when electrical current passes through it?
Wiki User
∙ 10y ago
A "diode" is any of several devices; the only thing they have in common is that they have two electrical connections - hence the name. These devices have different functions. The simplest semiconductor diode, and one of the most common, is probably the rectifier diode. It lets current pass in one direction, but not in the other direction.
Wiki User
∙ 10y ago
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How does a heater heats the room?
When electric heaters are plugged into the socket, electrical current passes through a metal that converts electrical energy into heat energy. Elsewhere in the heater electrical current passes through a motor attached to a fan. It starts turning. Finally, air from the fan is heated by the metal that has now turned red from heat and is ejected into the room wich raises its temprature. The same principal is used in hair dryers. Hope this helps.
