
The given I-V characteristic curve shows a device that produces current when exposed to light (positive current for positive voltage). This characteristic is shown by a solar cell. Solar cells convert light energy into electrical energy. The other options have different I-V characteristics.
Assertion (A): We cannot form a p-n junction diode by taking a slab of a p-type semiconductor and physically joining it to another slab of an n-type semiconductor.
Reason (R): In a p-type semiconductor, \( n_e \gg n_h \) while in an n-type semiconductor \( n_h \gg n_e \).
The graph shows the variation of current with voltage for a p-n junction diode. Estimate the dynamic resistance of the diode at \( V = -0.6 \) V.
