Solve. -The Power That a Resistor Must Dissipate Is Jointly Proportional

question 38

Multiple Choice

Solve.
-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 108 watts of power when 6 amperes of
Current is flowing through the resistor whose resistance is 3 ohms, find the power that a resistor needs to
Dissipate when 3 amperes of current are flowing through a resistor whose resistance is 7 ohms.

• A) 126 watts
• B) 147 watts
• C) 21 watts
• D) 63 watts

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