The instantaneous value of current, i amp, at t seconds is given by:
i = 15 sin(100pi t +0.6)
Find the value of
a) the amplitude
b) the period
c) the frequency
d) the initial phase angle (when t=0), expressed in both radians and degrees
e) the value of i when t =2.5s
f) the time (in milliseconds) when current first reaches its maximum value
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