A p-n junction (D) shown in the figure can act as a rectifier. An alternating current source (V) is connected in the circuit.
(A)(see structure)
(B)(see structure)
(C)(see structure)✓ Correct
(D)(see structure)
Answer: (C)
Solution
The single diode in series with the load makes this a half-wave rectifier. During the half of the input cycle that forward-biases the diode it conducts and the load carries current, while during the opposite half the diode is reverse-biased and blocks the current completely. The load therefore sees only the half-cycles of one polarity, so the output is the waveform in which alternate half-cycles are chopped off and only one set of humps survives.
JEE Main · 2009 · 12 Apr 2009 · Offline · Single correct option
