Any current more than 5mA will damage the transistor, hence a resistor is always connected in series with the base pin. The biasing current should be not more than 5 mA. This biasing can be done by providing the required amount of current to the base pin.
When we supply current to the transistor's base, it makes a path for the collector current to flow from the base to the emitter.ĭuring Forward Bias, the transistor will act as an Open switch, and during Reverse Bias, it will act as a Closed switch. When a transistor is used as a switch it is operated in the Saturation and Cut-Off Region.
The gain value of the BC547 transistor ranges from 110 to 800, and this value determines the transistor's amplification capacity. This transistor is commonly used for amplification of current as well as switching purposes.
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