Understanding Electric Circuits and Components

What is required for electricity to flow?

• An open circuit

• A closed circuit

• A broken wire

• An insulator

Which of the following materials is a good conductor of electricity?

• Wood

• Plastic

• Copper

• Rubber

In a series circuit, what happens if one component fails?

• The other components continue to work

• The whole circuit breaks

• The current increases

• The voltage increases

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

• To increase the current

• To prevent too much current

• To store electrical energy

• To convert AC to DC

Which component is used to reduce the flow of electricity in a circuit?

• Diode

• Resistor

• Capacitor

• Transformer

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

• To store electrical energy

• To reduce the flow of electricity

• To allow electricity to flow in one direction only

• To increase the voltage

What type of circuit is used in homes to ensure each component gets its own electricity supply?

• Series circuit

• Parallel circuit

• Open circuit

• Short circuit

What is an integrated circuit?

• A single component that stores electrical energy

• A component that only allows electricity to flow one way

• A combination of multiple components into one tiny unit

• A device that converts AC to DC

Which of the following is an example of an insulator?

• Water

• Aluminum

• Plastic

• Copper

Who designs electrical circuits and works on power grids and prosthetics?

• Mechanical engineers

• Civil engineers

• Electrical engineers

• Chemical engineers