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प्रश्न
Explain the heating effect of electric current.
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उत्तर
- When an electric current passes through a wire, the electrical energy is converted to heat.
- In heating appliances, the heating element is made up of materials with high melting point. An example of such a material is nichrome (an alloy of nickel, iron and chromium).
- The heating effect of electric current has many practical applications.
- The electric bulb, geyser, iron box, immersible water heater are based on this effect.
- These appliances have heating coils of high resistance.
- Generation of heat due to electric current is known as the heating effect of electricity.
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संबंधित प्रश्न
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Give two reasons why nichrome alloy is used for making the heating elements of electrical appliances.
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diameter?
Give a scientific reason:
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The electricity bill specifies the usage in _______.
Which metal is used to make the filament of an electric bulb?
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The graph of voltage vs current for four different materials is shown below.
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