JEE Main · 2007 · 29 Apr 2007 · Offline · Semiconductors

This item refers to a figure that is missing from the bank: a square voltage signal is applied to a $p$-$n$ junction diode feeding a load resistor, and the shape of the output across the load is asked for. Without the input-waveform and circuit diagram the levels and polarity cannot be pinned down, so the question is not fully determined as printed. In the usual version the diode conducts only while the input is positive, so only the positive half of the square signal is passed to the load and the negative half is blocked. The waveform figure should be restored before the question is used.