3ESO-Electricity and Electronics_2020

Which of the following materials are semiconductors:

• Silicon

• Germanium

• Selenium

• Vacuum

The Joule Effect has to do with ...

• Motion

• Light

• Heat

• All of them are correct

Calculate the value of the resistor in the image

• 120 ohms +-5%

• 21 ohms +-5%

• 12 ohms +-5%

• 210 ohms +-5%

What is the function of a capacitor

• All of them are correct

• To store electric charge

• To control the flow of the current

• To amplify the current

Which unit do we use to measure the value of a capacitor?

• Facons

• Volts

• Farads

• Watts

What is false about a NTC? only one option

• It is a variable resistor

• Its value depends on the temperature

• Its value decreases as the temperature rises

• Its value increases as the temperature rises

Which component represents the symbol of the image?

• A LED

• A Diode

• A Transistor

• A Capacitor

Which sentence is FALSE:

• A diode allows electricity to flow from the Anode (+) to the Cathod (-)

• A LED is a Light Emitting Diode

• A Transistor has two electrodes: Anode and Cathode

• A Transistor can work as an amplifier

Which electronic component can you see in the image?

• A microchip

• An Integrated circuit

• Both are correct

What is false about a Transistor?

• A transistor can work as a switch and as an amplifier

• A transistor has three electrodes: Anode, Cathode and Base

• There are two types of transistors NPN and PNP

• A transistor has three electrodes: Emitter, Colector and Base