- #1
ajayguhan
- 153
- 1
which is light doped in transistor, whether it is base or collector ?
The base of a transistor acts as a control terminal, regulating the flow of current between the emitter and collector terminals. By applying a small current or voltage to the base, the larger current flowing through the other two terminals can be controlled.
The base-emitter junction in a transistor behaves like a diode, allowing current to flow in one direction when a small voltage is applied to the base. If the voltage is reversed, the junction will block the flow of current.
The collector of a transistor is larger than the base to allow for a larger surface area for current to flow through. This results in a higher current gain, as more electrons can be collected from the base and passed through the collector.
When the base-emitter junction of a transistor is forward biased, current will flow from the emitter to the base, which in turn allows a larger current to flow from the collector to the emitter. This is how the transistor amplifies signals.
The collector current in a transistor is directly proportional to the base current. This means that as the base current increases, the collector current also increases. However, the ratio between the two currents is known as the current gain and varies depending on the type of transistor.