Question

How do you wire a PNP transistor?

Answer 1

PNP transistor circuit

Step 1: The emitter

1. The voltage on the base must first be lower than the voltage on the emitter for the PNP transistor to turn on.
2. It's typical to connect the emitter to the plus terminal of your power source for a circuit this simple. In this manner, you may determine the voltage present on the emitter.
3. Current can move from the emitter to the collector when the transistor is turned on. So let's attach the LED that we wish to control. Let's add a resistor as an LED should always have one in series with it.

Step 2: The transistor input

1. The transistor must be turned on in order for the channel from the emitter to the collector to open in order to turn on the LED. The voltage on the base must be $0.7volts\left(V\right)$ less than the voltage on the emitter in order to switch on the transistor, which is $9V-0.7V=8.3V$.
2. Hence, the collector-base junction is reverse biased and the emitter-base junction is forward biased when the transistor is operating normally.
3. The p-type emitter is connected to the positive terminal of the source $V_{EB}$, while the n-type base is connected to the negative terminal.
4. The source $V_{CB}\text{'}s$ negative terminal is attached to the p-type collector, while the positive terminal is attached to the n-type base.