Exam Question
(a) Explain the significance of the root mean square value of an alternating current or voltage wave form. Define the form factor of such a wave form. (6)
(b) Draw the circuit of Half-wave rectifier and its output waveform. A diode whose internal resistance is 20 Ω is to supply power to 1000 Ω load from 110 V (RMS) source. Calculate (10)
(i) peak load current,
(ii) DC load current,
(iii) AC load current.