Series Circuits

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

• It decreases

• It stays the same

• It increases

• It becomes zero

If three resistors with resistances of 2 ohms, 3 ohms, and 5 ohms are connected in series, what is the total resistance?

• 5 ohms

• 10 ohms

• 15 ohms

• 20 ohms

In a series circuit with a 12V battery and a single resistor of 4 ohms, what is the current flowing through the circuit?

• 1 A

• 2 A

• 3 A

• 4 A

What is true about the voltage across each component in a series circuit?

• It is the same across all components

• It is zero

• It is directly proportional to the resistance of each component

• It is inversely proportional to the resistance of each component

If the total voltage in a series circuit is 9V and there are three identical resistors in series, what is the voltage drop across each resistor?

• 1V

• 3V

• 9V

• 27V

How does the total current in a series circuit compare to the current through each component?

• It is higher

• It is lower

• It is the same

• It cannot be determined

What happens to the total current in a series circuit if the total resistance increases?

• It increases

• It decreases

• It stays the same

• It becomes zero

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

• The circuit continues to operate normally

• Only the component that failed stops working

• The entire circuit stops working

• The total resistance decreases

• 2 ohms

• 10 ohms

• 24 ohms

• 5 ohms

What is the effect of adding more cells in series to a series circuit on the total voltage?

• It decreases

• It stays the same

• It increases

• It becomes zero