Question A8.14: The voltage appearing at the secondary winding of a transfor...
The voltage appearing at the secondary winding of a transformer is shown in Fig. A8.19. Determine:
(a) the period of the voltage
(b) the value of the voltage when (i) t = 5 ms and (ii) t = 35 ms
(c) the maximum and minimum values of voltage
(d) the average value of the voltage during the time interval 0 to 40 ms
(e) the equation for the voltage.
All of the above can be obtained from the graph of Fig. A8.19, as follows:
(a) period, T = 20 ms (this is the time for one complete cycle of the voltage)
(b) at t = 5 ms, ν = 20 V; at t = 35 ms, ν = −20 V
(c) ν_{max} = +20 V and ν_{min} = −20 V
(d) ν_{av.} = 0 V (the positive and negative cycles of the voltage are equal)
(e) ν = 20 sin 314 t (the maximum value of the voltage, V_{max} , is 20 V and T = 0.02 s).