document.write( "Question 824420: Solve.\r
\n" ); document.write( "\n" ); document.write( "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 64 watts of power when 4 amperes of current is flowing through the resistor whose resistance is 4 ohms,find the power that a resistor needs to dissipate when 3 amperes of current are flowing through a resistor whose resistance is 7ohms.
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Algebra.Com's Answer #496446 by Alan3354(69443)\"\" \"About 
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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 64 watts of power when 4 amperes of current is flowing through the resistor whose resistance is 4 ohms,find the power that a resistor needs to dissipate when 3 amperes of current are flowing through a resistor whose resistance is 7ohms.
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\n" ); document.write( "\"P+=+I%5E2R\"
\n" ); document.write( "\"P+=+3%5E2%2A7+=+63\" watts
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