Question

To use a transistor as an amplifier:

• A. No bias voltage is required.
• B. Both junctions are forward biased
• C. Both junctions are reverse biased.
• D. The emitter-base junction is forward biased and the base-collector junction is reverse biased.

Answer 1

The correct option is D

The emitter-base junction is forward biased and the base-collector junction is reverse biased.

Transistor:

1. In a common-emitter (CE) configuration, a transistor serves as an amplifier.
2. The base-emitter junction is forward biassed in this configuration, while the collector-base junction is reverse biassed.
3. A transistor is an electronic component that can be used in a variety of electronic devices to either amplify or switch electrical signals or power.
4. A transistor is made up of two PN diodes that are connected back to back.
5. It consists of three terminals: Emitter, base, and collector.

Hence, option(D) is correct.