document.write( "Question 540148: Electricity - In an AC circuit, the voltage E ( in volts), current I ( in amps), and impedance Z ( in ohms) are related by the formula E = I . Z. Find the current in a circuit with voltage 10 - 3j volts and impedance 4+ j ohms. \n" ); document.write( "
Algebra.Com's Answer #353599 by stanbon(75887)\"\" \"About 
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Electricity - In an AC circuit, the voltage E ( in volts), current I ( in amps), and impedance Z ( in ohms) are related by the formula E = I . Z. Find the current in a circuit with voltage 10 - 3j volts and impedance 4+ j ohms.
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\n" ); document.write( "E = I*Z
\n" ); document.write( "(10-3j) = I*(4+j)
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\n" ); document.write( "I = (10-3j)/(4+j)
\n" ); document.write( "---
\n" ); document.write( "Multiply numerator and denominator by (4-j) to get:
\n" ); document.write( "I = [(10-3j)(4-j)]/[(4+j)(4-j)]
\n" ); document.write( "-----
\n" ); document.write( "I = [(40-3) -(10+12)j] / [16+1]
\n" ); document.write( "----
\n" ); document.write( "I = (37 - 22j)/17
\n" ); document.write( "----
\n" ); document.write( "I = (37/17) - (22/17)j
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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