Electronics and Programming Quiz

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

• To increase current

• To reduce current

• To store charge

• To amplify signals

Which component is used to store electrical energy in a circuit?

• Resistor

• Capacitor

• Diode

• Transistor

What is the unit of electrical resistance?

• Ampere

• Volt

• Ohm

• Watt

Which of the following is a conductor of electricity?

• Rubber

• Plastic

• Copper

• Wood

What does a diode do in a circuit?

• Allows current to flow in one direction

• Blocks current completely

• Stores electrical energy

• Increases voltage

Which device is used to measure voltage in a circuit?

• Ammeter

• Ohmmeter

• Voltmeter

• Galvanometer

What happens when you connect a battery in reverse polarity in a circuit?

• The circuit will work normally

• The current will not flow

• The components might get damaged

• The circuit will short

In an electrical circuit, the direction of current flow is from:

• Negative to Positive

• Positive to Negative

• Both directions

• It doesn't flow

What is the purpose of an LED?

• To amplify sound

• To emit light

• To control voltage

• To reduce current

Which of the following is NOT an example of a power source?

• Battery

• Solar panel

• Resistor

• Dynamo