Electric Circuits Quiz

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

• To store electrical energy

• To resist the flow of electrical current

• To amplify electrical signals

• To convert electrical energy into light

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

• Resistor

• Capacitor

• Diode

• Transistor

What is the unit of electrical resistance?

• Volt

• Ampere

• Ohm

• Watt

• 2A

• 3A

• 4A

• 6A

Which of the following components can be used to control the flow of current in a circuit?

• Resistor

• Switch

• Capacitor

• Battery

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

• To allow current to flow in one direction only

• To store electrical energy

• To resist the flow of electrical current

• To amplify electrical signals

Which of the following is a source of direct current (DC)?

• Wall outlet

• Battery

• Generator

• Transformer

What is the symbol for a resistor in a circuit diagram?

• A zigzag line

• A straight line

• A circle

• A triangle

• 5V

• 7V

• 10V

• 12V

Which component can be used to amplify electrical signals in a circuit?

• Resistor

• Capacitor

• Diode

• Transistor