Unit 11 · ElectricityHeating Effect of Electric Current and Electric Power
Words of This Topic
- Load: any device that uses electrical energy to do a job, such as a lamp, a fan or a heater.
- Resistance: the opposition a material gives to current; it is where energy is converted in a load.
- Nichrome: a high-resistance alloy of nickel and chromium.
- Heating element: the high-resistance wire coil inside a heating appliance.
- Tungsten filament: the very thin wire inside a filament bulb that glows when heated.
- Immersion rod: an appliance dipped into water to heat it.
- Electric power: the electrical energy converted in unit time.
- Watt (W): the unit of power; 1 W means 1 J converted each second.