The Power, in Watts, Dissipated as Heat in a Resistor $P = 80 \mathrm { Watts }$

question 5

Multiple Choice

The power, in watts, dissipated as heat in a resistor varies jointly with the resistance, in ohms, and the square of the current, in amperes.A 15-ohm resistor carrying a current of 1 ampere dissipates 15 watts.
How much power is dissipated in a 80-ohm resistor carrying a current of 3 amperes?

• A) \( P = 80 \mathrm { Watts }\)
• B) \(P = 8\) Watts
• C) \(P = 3\) Watts
• D) \(P = 720 \mathrm { Watts }\)
• E) \(P = 24 \mathrm { Watts }\)

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Definitions:

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Thiamin

A water-soluble vitamin, also known as Vitamin B1, vital for energy metabolism in the body.

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A nutritional deficiency disease caused by a lack of thiamine (vitamin B1) in the diet, affecting the cardiovascular and nervous systems.

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Essential macromolecules made of amino acids that perform a wide range of functions within organisms, including catalyzing metabolic reactions and supporting cell structure.