When a p-n junction is reverse-biased, the current becomes almost constant at 25 μA. When it is forward-biased at 200 mV, a current of 75 μA is obtained. Find the magnitude of diffusion current when the diode is

(a) unbiased, (b) reverse-biased at 200 mV and (c) forward-biased at 200 mV.

गुणोत्तर-श्रेणी 0.1, 0.01, 0.001…. का सामान्य गुणोत्तर ज्ञात करो ।