Understanding Energy and Circuits Quiz

What is Ohm's Law?

If a circuit has a voltage of 12V and a current of 2A, what is the resistance?

• 4Ω

• 6Ω

• 8Ω

• 10Ω

Which of the following is a component of an electrical circuit?

• Resistor

• Battery

• Switch

• All of the above

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

• The circuit continues to work

• The circuit stops working

• The voltage increases

• The current increases

In a parallel circuit, if one component fails, what happens to the rest of the circuit?

• The entire circuit stops working

• The rest of the circuit continues to work

• The voltage decreases

• The current decreases

Calculate the total resistance of a series circuit with resistors of 2Ω, 3Ω, and 5Ω.

• 10Ω

• 5Ω

• 3Ω

• 2Ω

Calculate the total resistance of a parallel circuit with resistors of 6Ω, 3Ω, and 2Ω.

• 1Ω

• 2Ω

• 1.09Ω

• 11Ω

What is the unit of electrical resistance?

• Ampere

• Volt

• Ohm

• Watt

Which of the following is true for a series circuit?

• The current is the same through all components

• The voltage is the same across all components

• The power is the same across all components

• The resistance is the same across all components

Which of the following is true for a parallel circuit?

• The current is the same through all components

• The voltage is the same across all components

• The power is the same across all components

• The resistance is the same across all components