Which of the following will increase the heat produced by a heating element?
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A.
Using a wire of lower resistance
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B.
Using a material with high conductivity
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C.
Decreasing the applied voltage
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D.
Increasing the current flowing through the wire
Correct Answer:
D. Increasing the current flowing through the wire
Explanation:
The heat generated by a heating element is determined by Joule's Law of Heating, which states that the thermal energy produced is proportional to the square of the current, the resistance of the conductor, and the time the current flows. Increasing the electrical current significantly boosts the heat output because of this exponential relationship. In contrast, lowering the resistance, reducing the voltage, or using materials with high thermal conductivity would typically result in less heat being generated or more rapid heat dissipation, making the enhancement of current the most effective way to increase the temperature of the element.
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