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InterviewSolution
| 1. |
Application of joule\'s heating effect in our daily life |
| Answer» \tThe Electric Bulb: The filament bulb is such that the inner core filament (mostly tungsten as it does not melt easily) is heated up to a certain temperature after which it is illuminated.\tThe Electric Iron: Bimetallic plates and applying the heating effect of current helps the iron break the flow of electricity when a certain temperature is reached. you may have noticed this when the red light on an iron box comes on and off.\tElectric Heater: Similar to that of an iron box but here, a circuit breaker is used\tThe Electric Fuse: Copper or zinc can be used as the fuse element. When there is an excess of current flow through the electrical circuit, the heat generated increases as well and melts the fuse, thereby breaking the circuit. | |