1. Name two important processes that occur during the formation of a pn junction.
  2. Draw the circuit diagram of a full wave rectifier along with the input and output waveforms. Briefly, explain how the output voltage/current is unidirectional.
CBSE OUTSIDE DELHI - SET 1 NORTH 2016
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  1. Diffusion and Drift:
    1. Appearance of a BARRIER POTENTIAL across the junction.
    2. Formation of a DEPLETION REGION on either side of the junction.
  2. Circuit diagram:

Input and Output waveforms.


Because of (i) The use of the centre tap transformer and (ii) The manner in which the load is connected, the voltage across/current through, the load has the same direction during both half's of the input wave.
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