document.write( "Question 979479: At a fixed temperature, the resistance, R. Of a wire varies directly as the length, l, and inversely as the square of its diameter, d. If the resistance is 0.75 ohm when the diameter is 2 mm and the length is 3000 cm, what is the resistance when the diameter is 5 mm and the length is 2000 cm? \n" ); document.write( "
Algebra.Com's Answer #600759 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! If the resistance is 0.75 ohm when the diameter is 2 mm and the length is 3000 cm, what is the resistance when the diameter is 5 mm and the length is 2000 cm? \n" ); document.write( "------------ \n" ); document.write( "R1 = k*3000/2^2 = 0.75 \n" ); document.write( "k = 0.001 \n" ); document.write( "-------------- \n" ); document.write( "R2 = k*2000/5^2 \n" ); document.write( "R2 = 0.08 ohm \n" ); document.write( " |