state the three factor on which the heat produced by an electric current depend . How does it depend on the factors
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Answer:
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Explanation:
When current flows through a conductor, heat energy is generated in the conductor. The heating effect of an electric current depends on three factors: The resistance, R of the conductor. A higher resistance produces more heat.
Answer:
The heating effect of an electric current depends on three factors: The resistance, R of the conductor. A higher resistance produces more heat. The time, t for which current flows.
What 3 factors does heat produced by an electric current depend on? How?
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Your question is “ What 3 factors does heat produced by an electric current depend on? How?”
Most of the answers are quite correct, but I just thought it might be worth adding another answer, just to try and tackle that last word “How?’
You are aware that when a current I flows through a conductor, the amount of heat H generated in the conductor will depend on its resistance R, the current I, or the potential difference V across the conductor, and the time t for which the current flows. We may write this expression for the heat produced in various ways
We know that V*I = power P watts, so H = V*I*t Joules which we can also write as
H = V*I*t = (I^2)*R*t = [(V^2)/R]t
The answers to the “How?’ are unambiguously found in the last expression. The heat produced would obviously be greater for a higher potential difference V, a smaller resistance R, and a longer time t.
For a given potential difference, the lower the resistance, the higher the current. This is not immediately obvious from the usual expression H = (I^2)*R*t
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