The current gain of a tramnsistor is 0.9 for common base configuration if the change in emitter current is 8 mA the change in base current is

Options

A. 0.1 mA
B. 2 mA
C. 0.8 mA
D. 1.2 mA

Explanation

To solve the problem, we need to find the change in base current (ΔIB) given the change in emitter current (ΔIE) and the current gain (α) of the transistor in a common base configuration.

### Step-by-Step Solution:

1. **Identify Given Values**:
- Current gain (α) = 0.9
- Change in emitter current (ΔIE) = 8 mA

...