DC Series Circuit Quiz

What is true about the current in a series circuit?

• It varies at different points

• It is zero across resistors

• It is the same at all points

• It flows backward

What happens to the total resistance in a series circuit as more resistors are added?

• It decreases

• It remains the same

• It doubles

• It increases

If one component in a series circuit fails (e.g., a resistor burns out), the circuit will:

• Continue to operate normally

• Only affect that component

• Stop functioning entirely

• Overheat

Voltage in a series circuit is:

• The same across all components

• Not measurable

• Divided across components

• Always zero

In a series circuit with 3 equal resistors, the voltage drop across each resistor will be:

• Equal

• Zero

• Random

• Highest across the last one

What device is commonly used to measure current?

• Voltmeter

• Ohmmeter

• Ammeter

• Wattmeter

Which of the following best describes the current in a series circuit?

• It changes at every resistor

• It is split between components

• It remains constant throughout

• It alternates direction constantly

What is a key disadvantage of series circuits in practical applications?

• More efficient

• Failure of one device affects all

• More expensive

• No voltage drop

Series circuits are often used in:

• House lighting

• Christmas light strings

• Car dashboards

• Solar panels

What is the unit of resistance?

• Volt

• Amp

• Ohm

• Watt