document.write( "Question 43997: Inverse variations\r
\n" ); document.write( "\n" ); document.write( "The current I in an electrical conductor varies univesely as the resistance R of the conductor. If the currant is 1/2 ampere when the resistance is 230 omhs, what is the current when the resistance is 540 omhs?\r
\n" ); document.write( "\n" ); document.write( "please help set this up
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Algebra.Com's Answer #28917 by adamchapman(301)\"\" \"About 
You can put this solution on YOUR website!
OK, so the current varies inversely with the resistance. We can write:
\n" ); document.write( "\"I=x%2FR\"
\n" ); document.write( "where x is a fixed constant value.
\n" ); document.write( "Rearranging:
\n" ); document.write( "\"x=IR\"
\n" ); document.write( "When I=230, R=1/2, and this tells us that x=230/2=115
\n" ); document.write( "so when R=540,
\n" ); document.write( "\"I=115%2A540\"
\n" ); document.write( "Giving the solution I=62100 amps\r
\n" ); document.write( "\n" ); document.write( "I hope this helps.\r
\n" ); document.write( "\n" ); document.write( "I would be extremely grateful if you would send me your feedback on my help to adam.chapman@student.manchester.ac.uk.
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