When used as an amplifier the transistor operates in?

Transistors work as an amplifier while they work in the active region. The main function of a transistor as an amplifier is to enhance the input signal without changing much.

When transistor are used as amplifier they operate in?

To use a transistor as an amplifier, its input must be forward biased and output must be reversed biased. So, emitter-base junction must be forward biased and collector-base junction must be reverse biased.

In which region transistor operates as an amplifier?

Hint:Transistor acts as an amplifier in the active region of its output characteristics. The active region, also called the linear region, lies between the saturation and cut-off region and it is the region where the emitter-base junction is forward biased while the collector-base junction is reverse biased.

Which operating region is required for amplifier operation?

In the saturation region of operation, amplification can occur since the drain current varies with V_GS but (to first-order) does not vary with V_DS. This region of operation is analogous to the forward-active region in bipolar transistors, where amplification can occur.

When a transistor operates as a switch it is in the region or region?

Transistor acts as a switch in the saturation region and cutoff region. The emitter-base junction and the collector-base junction is reverse biased in the cutoff region. Both the junctions are forward biased in the saturation region.

Transistor as an amplifier | How does a transistor work | Transistor as an amplifier animation

When transistor is used as amplifier it increases?

When the transistor is biased to use as an amplifier, the input signals cause the emitter current to flow, which later contributes to the collector current. This current when flows through the load resistor, it results in a large voltage drop across. This shows that a transistor acts as an amplifier.

When transistor is operated in active region and used for amplification?

The transistor operates in active region when the emitter junction is forward biased and collector junction is reverse biased. In the active state, collector current is β times the base current, i.e. Where I_C = collector current, β = current amplification factor, and I_B = base current.

When transistor are used as amplifier they operate in active region breakdown region cut off region saturation region?

In digital circuits o/p can be 0 or 1. So when in saturation region means closed switch it gives output 1 and in cut off region means open switch it gives o/p 0. While transistor has to be used as an amplifier then it is operated in active region. Saturation region of transistor is maxim.

When transistor is used as a switch it is in?

Detailed Solution. When a transistor works as a switch it works in cut-off and saturation regions. In the cut-off state, both emitter-base junction and the collector-base junctions are reverse biased.

What is active region of transistor?

Active region is that region in which emitter base junction is forward bias while collector base junction is reverse bias. A three terminal device that has an emitter, base and a collector is known as transistor.

When a transistor is used as a switch what are two conditions in which it operates?

A Transistor switch, which is used for opening or closing of a circuit, that means the transistor is commonly used as a switch in the electronic devices only for the low voltage applications because of its low power consumption. Transistor work as a switch when it is in cutoff and saturation regions.

What is amplifier used for?

An amplifier is an electronic device that increases the voltage, current, or power of a signal. Amplifiers are used in wireless communications and broadcasting, and in audio equipment of all kinds. They can be categorized as either weak-signal amplifiers or power amplifiers.