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Question
What is the heating effect of electric current? Give a few real-life examples where it is used.
[3 Marks]
[3 Marks]
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Solution
When an electric current flows through a wire, the wire gets heated up. This phenomenon is known as the heating effect of electric current.
[1 Mark]
Some applications of this effect are:
a) A filament is a thin wire inside a bulb that produces light. When electricity passes through this wire, there is high obstruction to the flow of current. Due to this the filament gets heated, ultimately making a bulb glow.
[1 Mark]
b) Various other electrical appliances where this principle is used are iron, electric heater, electric geyser, toaster, etc.
[1 Mark]
When an electric current flows through a wire, the wire gets heated up. This phenomenon is known as the heating effect of electric current.
[1 Mark]
Some applications of this effect are:
a) A filament is a thin wire inside a bulb that produces light. When electricity passes through this wire, there is high obstruction to the flow of current. Due to this the filament gets heated, ultimately making a bulb glow.
[1 Mark]
b) Various other electrical appliances where this principle is used are iron, electric heater, electric geyser, toaster, etc.
[1 Mark]
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