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Electronics: PNP and NPN Transistors

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Questions and Answers

What is the primary function of the base electrode in a transistor?

Collects charges from the emitter

Determines the DC supply voltage

Controls the flow of charges (correct)

Supplies free charges

What type of transistor is formed when an N-type base is used?

NPN

PNP (correct)

NNP

What is the significance of the arrow in the schematic symbol of a transistor?

Indicates the direction of hole current (correct)

Represents the collector electrode

Represents the emitter electrode

Indicates the direction of electron current

What is the main difference between PNP and NPN transistors?

The polarity of DC supply voltage Signup and view all the answers

What is the most common type of transistor used in small electronic devices?

NPN Signup and view all the answers

What type of transistors are NPN and PNP?

Bipolar transistors Signup and view all the answers

What is the main purpose of a breadboard?

To test and prototype electronic circuits Signup and view all the answers

How are the holes in the power rails area of a breadboard connected?

Only holes in the same strip are electrically connected Signup and view all the answers

What is the function of the middle groove on a breadboard?

To electrically separate the two parts of the wiring rails Signup and view all the answers

What happens when you connect holes that are electrically connected?

Current is unblocked between them Signup and view all the answers