SOLUTION: 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

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?
(1)1 second
(2)2 second
(3)pi seconds
(4)220 seconds
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
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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2 seconds
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