document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=934425>Question 934425</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In physics, Ohm's law says that current through a wire, I, is directly proportional to voltage, V, and inversely proportional to resistance, R: I=V/R. It's also true that resistance is directly proportional to the length of the wire. We have a piece of wire. We pass 12 volts through this wire and measure 100 milliamps of current. If I cut the wire in half and pass 24 volts through it, how many milliamps of current will I measure?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #567418 by </B><A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><B>TimothyLamb(4379)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><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/cgi-bin/show-face.mpl?user=TimothyLamb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=567418\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1 milliamp = 1/1000 amp<BR>\n" );
document.write( "1000 milliamp/amp<BR>\n" );
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document.write( "v = ir<BR>\n" );
document.write( "r = v/i<BR>\n" );
document.write( "i = v/r<BR>\n" );
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document.write( "r = 12/(100/1000)<BR>\n" );
document.write( "r = 120 ohm<BR>\n" );
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document.write( "half wire resistance:<BR>\n" );
document.write( "(1/2)r = 60 ohm<BR>\n" );
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document.write( "i = v/r<BR>\n" );
document.write( "i = 24/60<BR>\n" );
document.write( "i = 0.400 amp<BR>\n" );
document.write( "i = (0.400 amp) * (1000 milliamp/amp)<BR>\n" );
document.write( "i = 400 milliamp<BR>\n" );
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