Circuits Practice

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

• It continues through other paths.

• It stops completely.

• It reverses direction.

• It increases.

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DOK Level 1: Recall

Which of the following is a characteristic of a parallel circuit?

• Voltage is the same across each component.

• Current is the same through each component.

• Resistance is the same across each component.

• Power is the same in each component.

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DOK Level 2: Skill/Concept

How does adding more resistors in parallel affect the total resistance?

• Increases the resistance

• Decreases the resistance

• Does not change the resistance

• The effect depends on the voltage

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DOK Level 2: Skill/Concept

If you have two resistors in series, each with a resistance of 4 ohms, what is the total resistance?

Show your work.

Mathematical Equivalence

ON

Calculate the total current flowing through a circuit if the total resistance is 10 ohms and the voltage supplied is 20 volts.

Show your work.

Mathematical Equivalence

ON

Given three resistors of 3 ohms, 6 ohms, and 9 ohms connected in parallel, calculate the total resistance.

• 18 ohms

• 2 ohms

• 1.6 ohms

• 0.5 ohms

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DOK Level 3: Strategic Thinking

Why might an engineer choose to use a parallel circuit rather than a series circuit in designing household wiring?

• To ensure that all appliances receive the same voltage

• To ensure that if one appliance fails, the circuit is still operational

• To increase the total resistance of the circuit

• To decrease the energy efficiency of the circuit

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DOK Level 3: Strategic Thinking

How does the total resistance in a circuit change when more resistors are added in series?

• Total resistance decreases

• Total resistance increases

• Total resistance remains the same

• Total resistance becomes zero

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DOK Level 3: Strategic Thinking

Which of the following statements correctly describes series and parallel circuits?

• Series circuits are more reliable as they continue to function if one resistor fails.

• Parallel circuits are more reliable as other paths remain functional if one resistor fails.

• Both types of circuits are equally affected by a resistor failure.

• Neither circuit type is affected by resistor failures.

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DOK Level 4: Extended Thinking

What will happen if one light bulb is removed from this circuit?

• The other bulbs will go out.
• The other bulbs will stay on
• The other bulbs will get dimmer.
• The battery will become stronger.