What type of signal can a transistor amplify?

Transistor Amplifier A transistor acts as an amplifier by raising the strength of a weak signal. The DC bias voltage applied to the emitter base junction, makes it remain in forward biased condition. This forward bias is maintained regardless of the polarity of the signal.

What is a two stage amplifier?

The two stage amplifier circuit has two transistors, connected in CE configuration and a common power supply VCC is used. The potential divider network R1 and R2 and the resistor Re form the biasing and stabilization network. The emitter by-pass capacitor Ce offers a low reactance path to the signal.

How can a transistor be used to amplify signals?

The small current travels from the voltage source into the base of the transistor. A current at the base turns on the transistor. The current is then amplified and travels from the emitter of the transistor to the collector. The amplified current is large enough to turn on and light the LED.

How do you make an amplifier with two transistors?

BC547 Double Transistor Audio Amplifier

1. Step 1: Take All Parts As Shown Below. Components required –
2. Step 2: Connect Both Transistors.
3. Step 3: Connect 10K Resistor.
4. Step 4: Connect Capacitor.
5. Step 5: Connect Speaker Wire.
6. Step 6: Connect Aux Cable.
7. Step 7: Connect Power Supply Wire.
8. Step 8: Aplifier Is Ready.

What is multistage transistor amplifier?

In Multi-stage amplifiers, the output of first stage is coupled to the input of next stage using a coupling device. These coupling devices can usually be a capacitor or a transformer. This process of joining two amplifier stages using a coupling device can be called as Cascading.

When transistor is used as amplifier it usually operates in the?

Therefore, when transistors are used in digital circuits, they usually operate in saturation and cut off regions and option (D) is correct.