Electrical Circuits Quiz

What is the primary function of wires in electrical circuits?

• To insulate components

• To connect components together

• To resist electrical flow

• To generate electricity

How is the size of a wire determined in an electrical circuit?

• By the color of the wire

• By the length of the wire

• By the amount of current that needs to flow through them

• By the weight of the wire

What does a high current requirement imply about the wire needed?

• A thinner wire is needed

• A shorter wire is needed

• A longer wire is needed

• A bigger wire is needed

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

• To increase the current flow

• To open and close a circuit

• To measure voltage

• To store electrical energy

What is the function of a battery in a circuit?

• To decrease the voltage

• To provide the voltage

• To interrupt the current flow

• To measure the voltage

What is the function of resistors in an electrical circuit?

• Amplify the electrical current

• Store electrical energy

• Restrict the flow of electrons

• Convert electrical energy into light

What is the unit of measurement for resistors?

• Watts

• Volts

• Ohms

• Amps

What is the primary function of a capacitor in electrical circuits?

• To increase electrical resistance

• To store energy in an electrical field

• To convert AC to DC

• To regulate voltage levels

Capacitors are usually measured in which unit?

• Volts

• Ohms

• Watts

• Farads

Which of the following is a common subunit used to measure the capacitance of capacitors?

• Millifarads

• Microfarads

• Kilofarads

• Megafarads