- What is a transistor?
Answer: A transistor is a three-terminal semiconductor device which is mainly used to amplify or change the direction of electronic signals.
- Who invented the transistor?
Answer: Walter Brattain, John Bardeen, and William Shockley invented the transistor.
- Where are transistors used?
Answer: Transistors are used in oscillators, amplifiers, and switches.
- What are the two types of transistors?
Answer: The two types of transistors are
- Bipolar Junction Transistors (BJT)
- Field Effect Transistors (FET)
- Define bipolar junction transistors.
Answer: A bipolar junction transistor is a semiconductor three-terminal device which features two P-N junctions and is able to amplify or magnify electrical signals.
- What are the three terminals seen in the Field Emitter Transistor (FET)?
Answer: Three terminals of Field Effect Transistors (FET) are the source, gate, and drain.
- What is an NPN transistor?
Answer: NPN transistor is a type of transistor in which a p-type semiconductor is sandwiched between two p-type semiconductors. In NPN transistors, electrons are the majority charge carriers, and holes are the minority charge carriers.
- What is a PNP transistor?
Answer: PNP transistor is a bipolar junction transistor formed with three layers of semiconductor material, with two P-type regions and one N-type region.
- Define input resistance.
Answer: Input resistance is the small resistance provided by the collector junction of the transistor because of forward biasing.
- Define output resistance.
Answer: The output resistance is the high-value resistance provided by the collector junction because of reverse biasing.
- What are the three terminals of the transistor?
Answer: Emitter, base and collector are the three terminals of the transistor.
- What is the formula to calculate the current gain?
Answer: The formula to calculate the current gain is:
- What are the different sections of the semiconductor junction transistor?
Answer: The emitter, base, and collector are the different sections of the semiconductor junction transistor.
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