10.4 Series and Parallel Circuits

What is the main characteristic of a series circuit?

• The voltage is the same across all components.

• The current takes a single path.

• The current takes multiple paths.

• The resistance is always zero.

In a parallel circuit, how is the current distributed?

• The current is divided among the branches.

• The current is the same in all branches.

• The current is only in one branch.

• The current is zero in all branches.

What principle is used to determine voltages and currents in circuits?

• Newton's Laws

• Conservation of Energy

• Conservation of Charge

• Conservation of Mass

What is true about resistors in series?

• They have the same voltage drop.

• They have infinite resistance.

• They have zero resistance.

• They have the same current passing through each.

What is true about resistors in parallel?

• They have the same voltage drop across each.

• They have zero voltage drop.

• They have the same current passing through each.

• They have infinite current.

In a series circuit with two 100 ohm resistors and a 12V battery, what is the current?

• 6.0 A

• 1.2 A

• 0.12 A

• 0.06 A

In a parallel circuit with two 100 ohm resistors and a 12V battery, what is the total current drawn?

• 1.2 A

• 0.24 A

• 0.12 A

• 0.06 A

What is the equivalent resistance of two 100 ohm resistors in series?

• 400 ohms

• 200 ohms

• 100 ohms

• 50 ohms

What is the equivalent resistance of two 100 ohm resistors in parallel?

• 400 ohms

• 200 ohms

• 100 ohms

• 50 ohms

What is the efficiency of a circuit with a wire resistance of 1 ohm and load resistance of 10 ohms?

• 50%

• 75%

• 91%

• 100%