Solve the problem.The power that a resistor must dissipate is jointly proportional to the square of the current flowing through the resistor and the resistance of the resistor. If a resistor needs to dissipate  of power when  of current is flowing through the resistor whose resistance is  find the power that a resistor needs to dissipate when 

/> of current are flowing through a resistor whose resistance is 



A. 324 watts

B. 72 watts

C. 144 watts

D. 36 watts


Answer: C

Mathematics

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