Basic Electrical Components Quiz

What is the function of a resistor in an electrical circuit?

• Oppose the flow of electrons

• Store electric energy

• Emit light when electrons flow through them

• Let you change resistance values

Which component is used to display numbers or some letters?

• LED

• LCD Digital Display

• Speaker

• Antenna Coil

What is the purpose of a diode in an electrical circuit?

• Let electrons flow through them only in one direction

• Change resistance values

• Emit light when electrons flow through them

• Store electric energy

Which component is used to amplify the audio frequency signal?

• Operational Amplifier

• Ceramic Capacitor

• Zener Diode

• Key

What is the function of a switch in an electrical circuit?

• Connect or disconnect electrical circuits

• Store electric energy

• Emit light when electrons flow through them

• Oppose the flow of electrons

What is the primary function of a capacitor in an electrical circuit?

• Store electric energy

• Emit light when electrons flow through them

• Connect or disconnect electrical circuits

• Oppose the flow of electrons

Which component is used to convert electrical energy into mechanical energy?

• Motor

• Resistor

• Diode

• Capacitor

What is the role of an inductor in an electrical circuit?

• Store energy in a magnetic field

• Emit light when electrons flow through them

• Change resistance values

• Convert electrical energy into sound

What is the primary function of a transformer in an electrical circuit?

• Emit light when electrons flow through them

• Change the voltage level

• Store electric energy

• Oppose the flow of electrons

Which component is used to protect circuits from overcurrent?

• Fuse

• Resistor

• Capacitor

• Inductor