On what factors does the amount of heat produced in a conducting wire depend and what is the working principle of an electric bulb? [3 MARKS]

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Solution

Factors: 0.5 Mark each
Working Principle: 1 Mark

The factors on which the amount of heat produced in a wire depends are:
1) its material
2) length of the wire
3) the thickness of the wire
4) the amount of current passing through the wire
The working of an electric bulb is based on the principle of the heating effect of electric current.

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