document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1000199>Question 1000199</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The current I in an electrical conductor varies inversely as the resistance R of the conductor. The current is 1/5 ampere when the resistance is 21875 ohms.  What is the current when the resistance is 42875 ohms? </SPAN>\n" );
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document.write( "The current I in an electrical conductor varies inversely as the resistance R of the conductor. The current is 1/5 ampere when the resistance is 21875 ohms.  What is the current when the resistance is 42875 ohms?<BR>\n" );
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document.write( "The condition states that &nbsp;I = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=U%2FR ALIGN=MIDDLE  ALT=\"U%2FR\"   DISABLED_style= \"max-width:90%; height:auto;\" >, &nbsp;where &nbsp;U = const. &nbsp;(By the way, &nbsp;physically&nbsp; &nbsp;U is electric potential difference across the resistance). \r<BR>\n" );
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document.write( "In other words, &nbsp;the product &nbsp;I*R&nbsp; is the constant value &nbsp;U.\r<BR>\n" );
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document.write( "Therefore, &nbsp;you have an equation\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F5 ALIGN=MIDDLE  ALT=\"1%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=21875 ALIGN=MIDDLE  ALT=\"21875\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x ALIGN=MIDDLE  ALT=\"x\"   DISABLED_style= \"max-width:90%; height:auto;\" >*<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=42875 ALIGN=MIDDLE  ALT=\"42875\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "where &nbsp;x&nbsp; is the unknown current. &nbsp;Hence,\r<BR>\n" );
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document.write( "x = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%2F5%29%2A%2821875%2F42875%29 ALIGN=MIDDLE  ALT=\"%281%2F5%29%2A%2821875%2F42875%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > ampere.\r<BR>\n" );
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