Transistors Quiz

What is the primary purpose of transistors as mentioned in the text?

• To conduct electricity

• To build fun projects

• To amplify or switch electronic signals

• To store data

What is the primary function of a transistor in electronic circuits?

• To increase the voltage

• To act as an electronic switch

• To store electrical energy

• To decrease the current

Which of the following is NOT a part of an NPN transistor?

• Base

• Collector

• Emitter

• Inductor

What component does this image represent?

• Relay

• Bipolar Junction Transistor (BJT)

• Dual-Gate switch

• Selector switch

What component is used in conjunction with a transistor to ensure it receives the correct voltage?

• Capacitor

• Inductor

• Resistor

• Transformer

What is the primary function of adding a resistor in series with a transistor's base-to-emitter junction?

• To increase the current flow

• To stabilize the voltage

• To decrease the voltage drop

• To prevent excessive voltage

Which principle is applied when limiting the current through an LED to prevent it from blowing up?

• Kirchhoff's voltage law

• Ohm's law

• Faraday's law of induction

• Joule's law

What happens when a current flows from the base to the emitter in a transistor?

• The transistor turns off, preventing any current flow.

• The transistor turns on, allowing a larger current to flow from the collector to the emitter.

• The transistor does not affect current flow.

• The transistor reverses the current flow direction.

What is the function of the base in a transistor as shown in the diagram?

• To emit electrons

• To collect electrons

• To control the flow of current

• To supply power

If the battery voltage is 9V and the base-to-emitter voltage of the transistor is 0.7V, what is the voltage across the resistor?

• 8.3V

• 9.7V

• 0.7V

• 1.3V