The drift current in a p-n junction is `20(mu)A.`Estimate the number of electrons crossing a cross section per second in the depletion region.

Explanation

To solve the problem of estimating the number of electrons crossing a cross-section per second in the depletion region of a p-n junction given a drift current of 20 µA, we can follow these steps:

### Step 1: Convert the drift current to amperes
The drift current is given as 20 µA. We need to convert this to amperes for our calculations.

\[ I = 20 \, \mu A = 20 \times 10^{-6} \, A \]
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