What is the output current of a transistor?
In a common base transistor circuit, IC is the output current and IE is the input current. The current gain a pc is.
What does transistor do to current?
A transistor, also known as a BJT (Bipolar Junction Transistor), is a current driven semiconductor device which can be used to control the flow of electric current in which a small amount of current in the Base lead controls a larger current between the Collector and Emitter.
Do transistors control current?
The transistor allows you to control a circuit that’s carrying higher current and voltage from the a lower voltage and current. It acts as an electronic switch. When there’s no voltage difference between the base and the emitter, the transistor turns off, or stops the flow of electricity from collector to emitter.
How much voltage is in a transistor?
Generally speaking, this value is between . 6 to . 7 volts for a general-purpose transistor.
How does current flow through Transistor?
Transistors can also work as switches. A tiny electric current flowing through one part of a transistor can make a much bigger current flow through another part of it. In other words, the small current switches on the larger one. This is essentially how all computer chips work.
What is the voltage required to turn on a transistor?
Note in the formula above, that V BE (sat) is the required base voltage that must be present in order to forward-bias the transistor’s base/emitter junction (i.e., to turn the transistor on). Generally speaking, this value is between .6 to .7 volts for a general-purpose transistor.
Can you use transistor as resistor?
Using a transistor in place of a resistor or a capacitor is sometimes done in integrated circuit design, because some processes don’t offer suitable resistors or capacitors or they simply would take up too much area.
Why transistor is called Transistor of resistor?
transistor is a combination of the words transfer and resistor called transistor. It’s called so because it is a resistor or semiconductor device which can amplify electrical signals as they are transferred through it from input to output terminals.