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Ohm's Law
Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points. Introducing the constant of proportionality, the resistance, one arrives at the usual mathematical equation that describes this relationship: I=V/R, where I is the current through the conductor in units of amperes, V is the voltage measured across the conductor in units of volts, and R is the resistance of the conductor in units of ohms.
Conventional Domestic Fans.
Electric Heaters. The electric heaters are the common appliances used in winters throughout the world.
Electric Kettles and Irons. The electric kettle and irons have a lot of resistors in them.
Design of Electric Devices.