Application of heating effects of electric current.
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Application of heating effects of electric current.?
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the heating effect of electric current is used in electronic appliances like electric heater, electric iron , electric room heater,immensinon heater , electric heater, hair dryer etc .
all these appliances have a coil of wire called an element . when electric current flows through the element it becomes hot and gives us heat. the amount of heat produced in a wire depends upon it's material , length and thickness .
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The heating effect of electric current is used in the following applications:
- Electric Bulb: In an electric bulb, the filament of bulb gives light because of heating effect of electricity. ...
- Electric iron: The element of electric iron is made of alloys having high melting point.
- Electric fuse: Electric fuse is used to protect the electric appliances from high voltage; if any. Electric fuse is made of metal or alloy of metals, such as aluminium, copper, iron, lead, etc. In the case of flow of higher voltage than specified, fuse wire melts and protects the electric appliances.
- Fuse of 1A, 2A, 3A, 5A, 10A, etc. are used for domestic purpose.
- Suppose, if an electric heater consumes 1000W at 220V.
- Then electric current in circuit `I = P/V`
- Or, `I = 1000 W − 220 V = 4.5 A`
- Thus, in this case a fuse of 5A should be used to protect the electric heater in the case of flow of higher voltage.
Explanation:
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