Transistors

To solve the problem, we need to calculate the base current in the given transistor circuit using the provided parameters.

1. Given Information:
- Current gain factor,
- Resistance of the collector resistor,
- Voltage drop across the collector resistor,

2. Calculate :
The relationship between and is given by:


Substitute :

3. Calculate Collector Current ( ):
The collector current can be calculated using Ohm's Law:


Substitute and :

4. Calculate Base Current ( ):
The relationship between collector current and base current is:


Rearrange to solve for :


Substitute and :


Convert to microamperes:


Round to one decimal place:

Final Answer:
The base current is .