A change of 200mV in base-emitter voltage causes a change of 100μA in the base current. Find the input resistance of the transistor

Explanation

To find the input resistance of the transistor, we can follow these steps:

### Step 1: Identify the given values
We are given:
- Change in base-emitter voltage, \( \Delta V_{BE} = 200 \, \text{mV} \)
- Change in base current, \( \Delta I_B = 100 \, \mu A \)

### Step 2: Convert the given values to standard units
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