Electronic Devices

Electronic devices cannot be recycled anymore like other materials.

• True

• False

Tags

NGSS.HS-ETS1-3

What is the power source for appliances that use direct current (DC)?

• Batteries

• Wall outlet

• Solar panels

Tags

NGSS.HS-PS3-3

Does a smartphone have current or static electricity'

What is the primary function of a diode in an electronic circuit?

• To amplify signals

• To store energy

• To allow current to flow in one direction

• To convert AC to DC

Which component is used to store electrical energy in an electronic circuit?

• Resistor

• Capacitor

• Inductor

• Transistor

What is the main difference between a semiconductor and a conductor?

• Semiconductors have higher resistance than conductors

• Semiconductors conduct electricity better than conductors

• Semiconductors are used only in high-frequency applications

• Semiconductors are always made of silicon

Which of the following is a characteristic of a transistor?

• It can amplify electrical signals

• It stores electrical charge

• It converts AC to DC

• It emits light when current passes through

What is the role of a resistor in an electronic circuit?

• To increase current

• To decrease voltage

• To limit current

• To store charge

Tags

NGSS.MS-PS2-3

Which electronic component is used to convert alternating current (AC) to direct current (DC)?

• Transformer

• Rectifier

• Capacitor

• Inductor

What is the purpose of a light-emitting diode (LED)?

• To amplify sound

• To emit light

• To store energy

• To convert AC to DC

Tags

NGSS.HS-PS4-3