document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=85187>Question 85187</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the resistence of a wire varies directly with its length and inversly with the square of its radius. if a wire with  a radius of 1.3mm and a lrngth of 14m has a resistence of 17ohms, what wil be the resistance of a wire with a radius of .08 and a length of 20m </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #61610 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=61610\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the resistence of a wire varies directly with its length and inversly with the square of its radius. if a wire with  a radius of 1.3mm and a lrngth of 14m has a resistence of 17ohms, what wil be the resistance of a wire with a radius of .08 and a length of 20m<BR>\n" );
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document.write( "R = k(L/r^2)<BR>\n" );
document.write( "Find \"k\":<BR>\n" );
document.write( "17 = k(14/1.3^2)<BR>\n" );
document.write( "k= 2.05<BR>\n" );
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document.write( "EQUATION: <BR>\n" );
document.write( "R = 2.05(L/r^2)<BR>\n" );
document.write( "R = 2.05(20/0.08^2)<BR>\n" );
document.write( "R = 2.05(3125)<BR>\n" );
document.write( "R = 6406.25 ohms<BR>\n" );
document.write( "============<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );