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

Explanation

To solve the problem step by step, we need to analyze the behavior of the p-n junction diode under different biasing conditions: unbiased, reverse-biased, and forward-biased.

### Given Data:
- Reverse-biased current (I_net) = 25 µA
- Forward-biased current (I_net) = 75 µA
- Forward bias voltage = 200 mV

### Step 1: Unbiased Condition
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