document.write( "Question 1056250: Electricity. The power P in an electric circuit varies directly with the square of the current I. If P = 46 when I = 2, find P when I = 5.
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Algebra.Com's Answer #671424 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Electricity. The power P in an electric circuit varies directly with the square of the current I. If P = 46 when I = 2, find P when I = 5. \n" ); document.write( "-------- \n" ); document.write( "P = I^2*R \n" ); document.write( "46 = 4*R \n" ); document.write( "R = 23/2 \n" ); document.write( "------- \n" ); document.write( "find P when I = 5. \n" ); document.write( "P = 25*23/2 \n" ); document.write( "P = 575/2 watts \n" ); document.write( " |