<p>A circuit of a full-wave rectifier using a center-tap transformer is shown.</p>

<p><img alt="" src="https://school.achievam.com/upload/questionbank/question/que_1758513281.jpg" style="height:150px; width:265px" /></p>

<p>(a) Explain how diodes D1​ and D2​ conduct during alternate half cycles.<br />
(b) Draw the output waveform across the load resistor.<br />
(c) If the input AC frequency is 50 Hz, calculate the output frequency.</p>