The wattage rating of an appliance, W, varies jointly as the square of the current, I, and
Question:
The wattage rating of an appliance, W, varies jointly as the square of the current, I, and the resistance, R. If the wattage is 6 watts when the current is 0.2 ampere and the resistance is 150 ohms, determine the wattage when the current is 0.3 ampere and the resistance is 100 ohms.
(a) Write the variation equation.
(b) Determine the quantity indicated.
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a W kI 2 R b 6 ...View the full answer
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Related Book For 
A Survey of Mathematics with Applications
ISBN: 978-0134112107
10th edition
Authors: Allen R. Angel, Christine D. Abbott, Dennis Runde
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