document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=316456>Question 316456</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The signal to a speaker causes .5 amps of current. The signal level is increased to 2.5 amps. What is the gain, rounded to the nearest decibel?\r<BR>\n" );
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document.write( "I'm really stuck, please help me! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #226558 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=226558\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The signal to a speaker causes .5 amps of current.<BR>\n" );
document.write( " The signal level is increased to 2.5 amps.<BR>\n" );
document.write( " What is the gain, rounded to the nearest decibel? <BR>\n" );
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document.write( "The decibel gain formula using current: db = 20log<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28I2%2FI1%29 ALIGN=MIDDLE  ALT=\"%28I2%2FI1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "where I1=.5, I2=2.5<BR>\n" );
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document.write( "db = 20log<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282.5%2F.5%29 ALIGN=MIDDLE  ALT=\"%282.5%2F.5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "db = 20log(5)<BR>\n" );
document.write( "db = 20*.69897<BR>\n" );
document.write( "db = 13.9794 ~ 14 db gain </SPAN>\n" );
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