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

Multiple Choice

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 343 watts of power when 7 amperes of
Current is flowing through the resistor whose resistance is 7 ohms, find the power that a resistor needs to
Dissipate when 8 amperes of current are flowing through a resistor whose resistance is 9 ohms.

A) 504 W
B) 72 W
C) 648 W
D) 576 W