Circuits

What is the total resistance in a series circuit with three resistors of 2 ohms, 3 ohms, and 5 ohms?

• 10 ohms

• 9 ohms

• 5 ohms

• 15 ohms

In a series circuit, if the voltage across the battery is 12V and the total resistance is 4 ohms, what is the current flowing through the circuit?

• 48 A

• 3 A

• 0.33 A

• 8 A

If one of the bulbs in a series circuit burns out, what happens to the current in the circuit?

• It increases.

• It decreases.

• It remains the same.

• The circuit stops conducting.

What is the voltage across a resistor of 2 ohms when a current of 2 A flows through it?

• 1 V

• 4 V

• 2 V

• 0.5 V

A series circuit with a 4 Ω resistor and two 1 Ω resistors has a current of 2 A. What is the total voltage across the circuit?

• 3 V

• 12 V

• 6 V

• 8 V

How does adding more resistors in a series circuit affect the total resistance?

• It decreases.

• It remains the same.

• It increases.

• It first increases, then decreases.

What is the equivalent resistance in a series circuit if there are four resistors connected in series, each of 4 ohms?

• 4 ohms

• 8 ohms

• 16 ohms

• 12 ohms

In a series circuit, if the total voltage is 20V and the resistance is 5 ohms, what is the power dissipated in the circuit?

• 80 W

• 4 W

• 20 W

• 40 W

If a series circuit consists of a 6V battery and two resistors of 2 ohms and 3 ohms, what is the current flowing through the circuit?

• 1.2 A

• 2 A

• 0.5 A

• 1 A

What happens to the total voltage in a series circuit when more batteries are added?

• It decreases.

• It remains the same.

• It increases.

• It first increases, then decreases.