# Electrical Circuits Trivia Quiz

Reviewed by Matt Balanda
Matt Balanda, BS, Science |
Physics Expert
Review Board Member
Matt graduated with a Master's in Educational Leadership for Faith-Based Schools from California Baptist University and a Bachelor's of Science in Aerospace Engineering and Mathematics from the University of Arizona. A devoted leader, transitioned from Aerospace Engineering to inspire students. As the High School Vice-Principal and a skilled Physics teacher at Calvary Chapel Christian School, his passion is nurturing a love for learning and deepening students' connection with God, fostering a transformative educational journey.
, BS, Science
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Do you think you know everything there is to know about electrical circuits? Do you think you can pass this trivia quiz? An electrical circuit is an interconnectedness of electrical components. An electrical circuit is comprised of batteries, resistors, inductors, capacitors, switches, and transistors. An electrical system consists of a closed-loop, which is an entire route that an electric current can flow around. This quiz will help you better understand electrical circuits. Don't neglect to procure your certificate when you have completed the quiz.

• 1.

### Which of the following describes a series circuit?

• A.

Current flows along each branch

• B.

Bulbs are all in a loop

• C.

If one bulb breaks the other one still works

• D.

All the open switches in the circuit

B. Bulbs are all in a loop
Explanation
A series circuit is described by the statement "bulbs are all in a loop". In a series circuit, the components (in this case, bulbs) are connected in a single pathway, forming a loop. The current flows through each component in the circuit, one after another. If one bulb breaks or is removed from the circuit, the entire circuit is interrupted and none of the bulbs will work.

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• 2.

### Which of the following describes a parallel circuit?

• A.

All bulbs light up together

• B.

If one bulb breaks the circuit is broken

• C.

Current flows along each branch

• D.

The bulbs light up alternatively

C. Current flows along each branch
Explanation
A parallel circuit is a type of electrical circuit where the current splits into multiple branches, allowing it to flow along each branch independently. This means that each component in the circuit, such as bulbs, will receive the same voltage and can operate independently of each other. Therefore, the correct answer is "current flows along each branch."

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• 3.

### What units does the electrical current have?

• A.

Amps

• B.

Volts

• C.

Power

• D.

A square

A. Amps
Explanation
The unit for electrical current is amps, short for amperes. It is a measure of the flow of electric charge in a circuit. Amps represent the rate at which electric charges pass through a given point in a conductor. It is a fundamental unit in the International System of Units (SI) for measuring electric current.

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• 4.

### What is the symbol of a bulb?

• A.

A rectangle

• B.

A circle with an x

• C.

One big and one small line

• D.

A square

B. A circle with an x
Explanation
The symbol of a bulb is a circle with an x. This symbol is commonly used to represent a light bulb in various contexts, such as on electrical switches or in diagrams. The circle represents the bulb, while the x inside it indicates that the bulb is turned off or not functioning.

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• 5.

### What type of circuit do we find in our houses?

• A.

Parallel

• B.

Series

• C.

Series-Parallel

• D.

Star-Delta

A. Parallel
Explanation
In our houses, we find parallel circuits. A parallel circuit is a type of circuit where the components are connected in such a way that there are multiple paths for the current to flow. In a parallel circuit, each component is connected across the same voltage source, allowing independent current flow through each component. This type of circuit is commonly used in household wiring as it allows appliances and devices to operate independently without affecting each other.

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• 6.

### When you move, your brain uses electrical signals. these are called

• A.

Nerve signals

• B.

Electrical signals

• C.

Impulses

• D.

Nerve electric signals

C. Impulses
Explanation
When you move, your brain sends out electrical signals called impulses. These impulses travel through your nerves to the muscles, allowing them to contract and produce movement.

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• 7.

### If your heart stops, doctors can start it again by using a

• A.

Electric shocker

• B.

Defibrillator

• C.

Pacemaker

• D.

None of the above

B. Defibrillator
Explanation
A defibrillator is a medical device used to deliver an electric shock to the heart in order to restore normal heart rhythm. It is commonly used in emergency situations such as cardiac arrest when the heart has stopped beating effectively.

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• 8.

### When you skin is wet, electricity can pass through you

• A.

Easier

• B.

Harder

• C.

The same

• D.

None of the above

A. Easier
Explanation
When your skin is wet, it becomes a better conductor of electricity compared to dry skin. This is because water is a good conductor of electricity, and when your skin is wet, it provides a pathway for the electrical current to flow through your body more easily. Therefore, the correct answer is "easier."

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• 9.

### What is the function of an ammeter?

• A.

It measure the energy spent in the circuit

• B.

It measures the flow of electricity around the circuit

• C.

It measures the flow of current in the circuit

• D.

It is used to complete the circuit

C. It measures the flow of current in the circuit
Explanation
The function of an ammeter is to measure the flow of electricity or current in a circuit. It is used to determine the amount of current passing through a particular point in the circuit. By measuring the flow of electricity, an ammeter helps in monitoring and analyzing the electrical behavior of the circuit.

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• 10.

### A circuit has one lamp and a cell. What is most likely to happen if you add more cells to complete the circuit?

• A.

The circuit will not work.

• B.

• C.

The bulb will get dimmer

• D.

The bulb will get brighter

D. The bulb will get brighter
Explanation
When more cells are added to the circuit, the voltage across the circuit will increase. This increase in voltage will result in a higher current flowing through the circuit. As a result, the filament in the lamp will become hotter and emit more light, causing the bulb to get brighter.

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Matt Balanda |BS, Science |
Physics Expert
Matt graduated with a Master's in Educational Leadership for Faith-Based Schools from California Baptist University and a Bachelor's of Science in Aerospace Engineering and Mathematics from the University of Arizona. A devoted leader, transitioned from Aerospace Engineering to inspire students. As the High School Vice-Principal and a skilled Physics teacher at Calvary Chapel Christian School, his passion is nurturing a love for learning and deepening students' connection with God, fostering a transformative educational journey.

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• Current Version
• Mar 14, 2024
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Expert Reviewed by
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• May 21, 2010
Quiz Created by
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