Resistors -Quiz 1

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

• To increase the voltage

• To store electrical energy

• To convert electrical energy to mechanical energy

• To control the flow of current

Which of the following units is used to measure resistance?

• Volts

• Amperes

• Ohms

• Watts

What happens to the resistance of a wire if its length is doubled while keeping the same material and thickness?

• It doubles

• It quadruples

• It halves

• It remains the same

Two resistors with resistance values of 4 ohms and 6 ohms are connected in series. What is the total resistance of the combination?

• 1 ohm

• 2 ohms

• 10 ohms

• 24 ohms

Three resistors with resistance values of 8 ohms, 12 ohms, and 20 ohms are connected in parallel. What is the total resistance of the combination?

• 2.4 ohms

• 6 ohms

• 40 ohms

• 2.857 ohms