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Electrical Components Quiz

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Questions and Answers

What happens to the resistance of a thermistor as the temperature decreases?

Increases (correct)

Remains the same

Fluctuates

Decreases

Which electronic component has a Base, Collector, and Emitter?

Variable resistor

Thyristor

Thermistor

Transistor (correct)

In which situation is a Push to Break switch commonly used?

Voltmeter

Emergency button in a workshop (correct)

Doorbell

Microswitch

What type of switch requires a lever to be thrown or flipped to make or break the connection?

Toggle Switch Signup and view all the answers

Which component acts as an adjustable resistor?

Variable resistor Signup and view all the answers

Which component allows access to mains power?

Diode Signup and view all the answers

What component converts chemical energy into electrical energy?

Bulb Signup and view all the answers

What does an LED do when electrons pass through it?

Emits light Signup and view all the answers

What is the function of a potentiometer?

Forms an adjustable voltage divider Signup and view all the answers

What does a ldr do in light conditions?

Has high resistance Signup and view all the answers