Basics of Heating Effect of Electric Current



Applications of heating effect of current

Some common applications of heating effects of electric current are electrical laundry iron, toaster, heater, electrical bulb and fuses.


Describe a miniature circuit breaker (MCB)

An MCB or miniature circuit breaker is an electromagnetic device that embodies complete enclosure in a molded insulating material. The main function of an MCB is to switch the circuit, i.e., to open the circuit (which has been connected to it) automatically when the current passing through it (MCB) exceeds the value for which it is set. It can be manually switched ON and OFF as similar to normal switch if necessary.


CFL as a Power saver

CFL : CFL is the  Compact Fluorescent Lamp/Light ,which is designed to  save energy and electricity. It has worked as replacement to old incandescent bulbs because it saves 1/8th to 1/5th times of energy and last longer.
An electric bulb is used for light but it also gives heat. This is not desirable. This results in the wastage of electricity. This wastage can be reduced by using fluorescent tube lights in place of the bulbs. Compact fluorescent lamps (CFLs) also reduce wastage and can be fixed in the ordinary bulb holders.