Answer: Option C
:
C
The amount of heat produced in a conductor depends on the following parameters:
1.Material (resistance offered by the material) – good conductors produce less heat; e.g., elements of electric appliances are made of nichrome whereas connecting wires are made up of copper which is a better conductor so they do not get heated up easily.
2. Length – as length increases the heat produced also increases; e.g., heatingelementsare coiled in heaters to increase their length.
3. Thickness – as thickness increases the heat produced decreases; e.g., wires of iron are thicker than normal connecting wire so they don’t get heated up easily.
Force is not a parameter to be considered in this case.