In a transistor circuit the base current changes from 30 `muA` to `90muA`.If the current gain of the transistor is 30 ,find the change in the collector current.

Explanation

To solve the problem step by step, we will follow the information given in the question and apply the relevant formulas.

### Step 1: Identify the given values
- Initial base current (Ib_initial) = 30 µA
- Final base current (Ib_final) = 90 µA
- Current gain (β) = 30

### Step 2: Calculate the change in base current (ΔIb)
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