document.write( "Question 630910: the voltage of E of an alternating current electrical circuit can be represented by the sinusoidal function E=220cos(pi t) where E is measured in volts and t is measured in seconds. how long does it take the alternating current to complete one cycle?
\n" ); document.write( "(1)1 second
\n" ); document.write( "(2)2 second
\n" ); document.write( "(3)pi seconds
\n" ); document.write( "(4)220 seconds \n" ); document.write( "

Algebra.Com's Answer #397201 by Alan3354(69443) $\"\"$ $\"About$

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the voltage of E of an alternating current electrical circuit can be represented by the sinusoidal function E=220cos(pi t) where E is measured in volts and t is measured in seconds. how long does it take the alternating current to complete one cycle?
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\n" ); document.write( "2 seconds \n" ); document.write( "

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