Electric Circuits Basics

What is the unit of electric current?

• Volt

• Ampere

• Ohm

• Watt

Which of the following is a conductor of electricity?

• Rubber

• Glass

• Copper

• Wood

What is the formula for Ohm's Law?

What is the unit of resistance?

• Volt

• Ampere

• Ohm

• Watt

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

• Resistor

• Capacitor

• Inductor

• Diode

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

• A zigzag line

• A straight line

• A circle

• A triangle

What is the unit of electric power?

• Volt

• Ampere

• Ohm

• Watt

Which of the following is an insulator?

• Silver

• Aluminum

• Plastic

• Iron

What is the relationship between power, voltage, and current?

What is the function of a diode in a circuit?

• To store energy

• To resist current

• To allow current to flow in one direction only

• To generate voltage