Lesson 9

Which of the following is a component of a series circuit?

• Capacitor

• Resistor

• Transformer

• Inductor

What is the unit of resistance?

• Volt

• Ampere

• Ohm

• Watt

According to Ohm's Law, what is the formula to calculate voltage?

How does adding a resistor in series affect the total resistance of the circuit?

• Decreases the total resistance

• Increases the total resistance

• Does not change the total resistance

• Changes the total resistance randomly

• 3 A

• 4 A

• 2 A

• 6 A

If a voltmeter is connected across a resistor in a series circuit, what does it measure?

• Total current in the circuit

• Voltage drop across the resistor

• Total resistance of the circuit

• Power consumed by the resistor

In a series circuit, if one lightbulb burns out, what happens to the rest of the circuit?

• The rest of the circuit continues to work

• The entire circuit stops working

• The voltage increases

• The current increases

• 1.5 A

• 2 A

• 3 A

• 1 A

Explain how you would troubleshoot a series circuit that is not working.

• Check the battery voltage, inspect connections, and test each component individually.

• Replace all components without testing.

• Increase the voltage supply.

• Decrease the resistance of the circuit.