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Ceiling fan is a Single phase Induction motor. Generally we use a capacitor start & run AC Motor for ceiling Fans. Working principle: whenever current carrying conductor is placed in a magnetic field-it experiences force. AC motor needs a rotating magnetic field in order to turn the rotor shaft.

It was used in searchlights, movie projectors (high-intensity light)etc. Nowadays, gas discharge lamps are widely used. Carbon arc lamps are preffered due to its high efficiency. Here, the light is produced by the arc as in the case of carbon arc lamp but an inert gas is filled between the electrodes.

The handle is another important part of an electric iron. It can be Bakelite and Ebonite made. It attached to the cover plate with screws. A good handlebar bar makes the ironing a breeze.

Basic electrical concepts and terms – current, voltage, resistance, power, charge, efficiency.

In case of a short circuit, there will be infinite current flow in that circuit. Short Circuit: In a short circuit, there is low resistance between two conductors that supply power in any circuit. This causes excessive current flow in the circuit through the ‘short,’ and may even destroy the power source.

In a refrigerator Electric motor is used for compression which requires high torque. Single phase Induction Motor is perfectly suited for this purpose. So a brushless, capacitor start / induction run, ‘ squirrel cage type’ motor is used in household refrigerators.

A universal motor is typically used as suction motor across vacuum cleaners. The universal motor is a series DC-motor that is specially designed to operate on alternating current (AC) as well as on direct current (DC). Universal motors have high starting torque, operate at high speed, and are lightweight.

The primary function of damper winding in a synchronous machine is to prevent the phenomenon called hunting. If load on a synchronous machine is changed suddenly, its power angle has to change accordingly. However, change in power angle doesn’t occur smoothly. The rotor starts swinging around the new power angle.

Tool used for cutting, twisting or holding of wires or cables for terminations insulated combination plier,

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