Question

The current in an a.c. circuit at any time t seconds is given by:
i=sin(100πt-0.432)a
Determine (a) the amplitude, frequency, periodic time and phase angle (in
degrees), (b) the value of current at t = 0, (c) the value of current at t =8ms,
(d) the time when the current is first a maximum, (e) the time when the current
first reaches 3A. Sketch one cycle of the waveform showing relevant points.​

Answer 1

The current in an a.c. circuit at any time t seconds is given by:

i=sin(100πt-0.432)a

Determine (a) the amplitude, frequency, periodic time and phase angle (in

degrees), (b) the value of current at t = 0, (c) the value of current at t =8ms,

(d) the time when the current is first a maximum, (e) the time when the current

first reaches 3A. Sketch one cycle of the waveform showing relevant points.nxnxmxmkzkxn