In an N-P-N transistor operating in the active region, the collector current equals 7 mA and emitter current equals 7.2 mA. Calculate the value of current gain `alpha`

Explanation

To solve the problem of calculating the current gain (α) of an N-P-N transistor operating in the active region, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Definitions**:
- The collector current (I_C) is given as 7 mA.
- The emitter current (I_E) is given as 7.2 mA.
- The current gain (α) is defined as the ratio of the collector current to the emitter current.
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