Do transistors give a certain resistance? If so how do you find this resistance? Say Hypothetically for the following example. Refer to (fig.1). The resistor's value is 100Ω, source is 3V. Say if the transistor wasn't there, the amp would be 0.03A or 30mA. But when I run this in a simulation, the amp across the ciruit is 0.02252A or 22.52mA. How is the transistor affecting the current and is there a formula?