document.write( "Question 1192175: In an electrical circuit, the current passing through a conductor varies inversely with the resistance. Suppose that when the current is 10 A (amperes), the resistance is 14 ohms. What is the resistance when the current is 28 A? \n" ); document.write( "
Algebra.Com's Answer #824081 by greenestamps(13203)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "Inverse variation means the product of the current and resistance is constant. So \n" ); document.write( "10*14 = 28*x \n" ); document.write( "140 = 28x \n" ); document.write( "x = 140/28 = 5 \n" ); document.write( "ANSWER: 5 ohms \n" ); document.write( "----------------------------------------------------------------- \n" ); document.write( "I strongly disagree with the response from the other tutor. \n" ); document.write( "Since the problem states that the current varies inversely with the resistance, it is clear that the problem is NOT talking about the same circuit in both cases; the conductors in the two circuits are NOT the same. \n" ); document.write( "All other factors the same, when the current in the two circuits are different, the resistances are different. When the current is 28A, the resistance is 5 ohms. \n" ); document.write( " \n" ); document.write( " |