50 Electricity And Magnetism Quiz

Shock Your Brain – 50 Questions on Circuits, Fields & More

This 50 Electricity And Magnetism Quiz covers electric circuits, Ohm’s Law, components, magnetic fields, electromagnetism, motors, generators, transformers, inductance, capacitance, AC/DC, and key scientists. Each question includes four answer choices with the correct answer provided for self-checking.

Comment your score below after tallying your correct answers. Perfect for physics review, STEM units, or AP Physics prep. Share this quiz with classmates to spark your understanding of electricity and magnetism.

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Top 50 Electricity And Magnetism Quiz

Results

#1. Which of these is a good conductor of electricity?

Glass

Wood

Copper

Rubber

#2. What is the SI unit of electrical power?

Ohm

Joule

Watt

Volt

#3. Who discovered the relationship between electricity and magnetism?

Albert Einstein

James Clerk Maxwell

Hans Christian Ørsted

Isaac Newton

#4. What is a device that converts electrical energy into mechanical energy?

Generator

Motor

Battery

Transformer

#5. What is a diode used for?

Converting DC to AC

Amplifying signals

Allowing current to flow in one direction only

Storing charge

#6. What is a circuit where current has only one path to flow?

Series circuit

Combination circuit

Parallel circuit

Short circuit

#7. What is the standard voltage for household outlets in the United States?

220-240 V

5 V

12 V

110-120 V

#8. What happens to total resistance in a series circuit when you add more resistors?

Becomes zero

Decreases

Increases

Stays the same

#9. What is a transistor used for?

Switching and amplifying electronic signals

Generating electricity

Storing electrical charge

Measuring current

#10. What is magnetic flux?

The measure of magnetic field strength

The speed of magnetic field lines

The measure of the total magnetic field passing through a given area

The resistance to magnetic field

#11. Who invented the alternating current (AC) system?

Michael Faraday

George Westinghouse

Nikola Tesla

Thomas Edison

#12. What is a circuit breaker?

A type of transformer

A reusable protective device that opens a circuit during overcurrent

A type of resistor

A device that stores charge

#13. What is a fuse used for?

To store electricity

To convert AC to DC

To increase voltage

To protect circuits from overcurrent

#14. What type of current flows in one direction only?

Alternating Current (AC)

Oscillating Current

Pulsating Current

Direct Current (DC)

#15. What is a semiconductor?

A material that does not conduct electricity

A material that conducts electricity perfectly

A magnetic material

A material with conductivity between a conductor and an insulator

#16. What is electromagnetic induction?

The repulsion between charges

The production of electric current by changing magnetic fields

The production of magnetic fields by electric current

The attraction between magnets

#17. What does a step-up transformer do?

Decreases voltage and increases current

Increases both voltage and current

Increases voltage and decreases current

#18. What is a short circuit?

A circuit that is turned off

A circuit with an unintended low-resistance path allowing excessive current

A circuit that stores energy

A circuit with too much resistance

#19. What is the SI unit of electric charge?

Ohm

Volt

Ampere

Coulomb

#20. What is a material that resists the flow of electric current called?

Semiconductor

Insulator

Conductor

Superconductor

#21. What is the standard frequency of AC power in the United States?

50 Hz

100 Hz

120 Hz

60 Hz

#22. What is a solenoid?

A type of capacitor

A type of diode

A type of resistor

A coil of wire that produces a magnetic field when current flows through it

#23. What is Kirchhoff’s Current Law (KCL)?

Current is directly proportional to voltage

Resistance increases with temperature

The sum of currents entering a junction equals the sum of currents leaving

Voltage around a loop sums to zero

#24. What happens to total resistance in a parallel circuit when you add more resistors?

Becomes infinite

Increases

Stays the same

Decreases

#25. What is an inductor?

A component that stores energy in an electric field

A component that stores energy in a magnetic field

A component that rectifies AC

A component that generates voltage

#26. What is a capacitor?

A component that stores energy in a magnetic field

A component that stores energy in an electric field

A component that resists current flow

A component that amplifies signals

#27. What is the basic law that describes the force between two electric charges?

Faraday's Law

Lenz's Law

Coulomb's Law

Ohm's Law

#28. What is a device that converts mechanical energy into electrical energy?

Battery

Motor

Generator

Transformer

#29. What is the SI unit of electrical resistance?

Ampere

Volt

Ohm

Watt

#30. What are the northern and southern lights called?

Aurora Borealis and Aurora Australis

Sunspots

Magnetic storms

Solar flares

#31. What law states that the induced EMF opposes the change in magnetic flux?

Lenz's Law

Faraday's Law

Ohm's Law

Coulomb's Law

#32. What is the Earth’s magnetic field called?

Electric field

Geomagnetic field

Atmospheric field

Gravitational field

#33. What is a material that allows electric current to flow easily called?

Resistor

Conductor

Insulator

Semiconductor

#34. What is a circuit where current has multiple paths to flow?

Series circuit

Closed circuit

Parallel circuit

Open circuit

#35. What does a step-down transformer do?

Decreases both voltage and current

Increases voltage and decreases current

Decreases voltage and increases current

Increases both voltage and current

#36. What is a transformer used for?

Storing electrical energy

Changing voltage levels in AC circuits

Converting AC to DC

Converting DC to AC

#37. Which of these is a good insulator?

Aluminum

Iron

Silver

Rubber

#38. What is the SI unit of electric current?

Volt

Ampere

Watt

Ohm

#39. What is a resistor?

A component that stores electrical energy

A component that generates voltage

A component that converts AC to DC

A component that opposes the flow of current

#40. What is Kirchhoff’s Voltage Law (KVL)?

Power equals voltage times current

The sum of voltages around any closed loop equals zero

Current is directly proportional to voltage

The sum of currents entering a junction equals the sum of currents leaving

#41. What type of current changes direction periodically?

Pulsating Current

Alternating Current (AC)

Direct Current (DC)

Steady Current

#42. What is the right-hand rule used for?

Finding capacitance

Measuring voltage

Determining the direction of magnetic field around a current-carrying wire

Calculating resistance

#43. What is Ohm’s Law formula?

V = I ÷ R

R = V × I

I = V × R

V = I × R

#44. What is a ferromagnetic material?

A material that repels magnets

A material that is strongly attracted to magnets

A material that has no magnetic properties

A material that is a good conductor

#45. What is the magnetic field around a current-carrying wire?

Parallel to the wire

Perpendicular to the wire

Circular

Radial

#46. Who invented the direct current (DC) system and the first practical light bulb?

Nikola Tesla

Alexander Graham Bell

Thomas Edison

George Westinghouse

#47. What is an electromagnet?

A magnet that uses electric current to produce a magnetic field

A magnet that never loses its magnetism

A permanent magnet

A magnet made of iron only

#48. Who formulated the laws of electromagnetic induction?

Thomas Edison

André-Marie Ampère

Nikola Tesla

Michael Faraday

#49. What is the SI unit of electric potential difference (voltage)?

Watt

Ohm

Volt

Ampere

#50. What is a magnet’s north pole attracted to?

A south pole

Any metal

Any magnet

Another north pole

Finish

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Shock Your Brain – 50 Questions on Circuits, Fields & More

Top 50 Electricity And Magnetism Quiz

Results

#1. Which of these is a good conductor of electricity?

#2. What is the SI unit of electrical power?

#3. Who discovered the relationship between electricity and magnetism?

#4. What is a device that converts electrical energy into mechanical energy?

#5. What is a diode used for?

#6. What is a circuit where current has only one path to flow?

#7. What is the standard voltage for household outlets in the United States?

#8. What happens to total resistance in a series circuit when you add more resistors?

#9. What is a transistor used for?

#10. What is magnetic flux?

#11. Who invented the alternating current (AC) system?

#12. What is a circuit breaker?

#13. What is a fuse used for?

#14. What type of current flows in one direction only?

#15. What is a semiconductor?

#16. What is electromagnetic induction?

#17. What does a step-up transformer do?

#18. What is a short circuit?

#19. What is the SI unit of electric charge?

#20. What is a material that resists the flow of electric current called?

#21. What is the standard frequency of AC power in the United States?

#22. What is a solenoid?

#23. What is Kirchhoff’s Current Law (KCL)?

#24. What happens to total resistance in a parallel circuit when you add more resistors?

#25. What is an inductor?

#26. What is a capacitor?

#27. What is the basic law that describes the force between two electric charges?

#28. What is a device that converts mechanical energy into electrical energy?

#29. What is the SI unit of electrical resistance?

#30. What are the northern and southern lights called?

#31. What law states that the induced EMF opposes the change in magnetic flux?

#32. What is the Earth’s magnetic field called?

#33. What is a material that allows electric current to flow easily called?

#34. What is a circuit where current has multiple paths to flow?

#35. What does a step-down transformer do?

#36. What is a transformer used for?

#37. Which of these is a good insulator?

#38. What is the SI unit of electric current?

#39. What is a resistor?

#40. What is Kirchhoff’s Voltage Law (KVL)?

#41. What type of current changes direction periodically?

#42. What is the right-hand rule used for?

#43. What is Ohm’s Law formula?

#44. What is a ferromagnetic material?

#45. What is the magnetic field around a current-carrying wire?

#46. Who invented the direct current (DC) system and the first practical light bulb?

#47. What is an electromagnet?

#48. Who formulated the laws of electromagnetic induction?

#49. What is the SI unit of electric potential difference (voltage)?

#50. What is a magnet’s north pole attracted to?

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