Question 733714
The current in an alternating circuit varies in intensity with time. If I represents the intensity of the current and t represents time, then the relationship between I and t is given by 
I = 10 sin(100πt)where I is measured in amperes and t is measured in seconds. Find the maximum value of I
Max of the sine function = 1
Max current = 10 amps.
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and the time it takes for I to go through one complete cycle.
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Cycle time = 2pi/100pi = 0.02 seconds
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0.02 seconds --> 50 Hz, used in some countries.