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Mini-Quiz: Solenoids are Electromagnetic Devices

by Ron Kurtus (updated 12 February 2022)

Take this Mini-Quiz to check your understanding of the lesson material.

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1. What does wrapping the electric wire in a helix do to the magnetic field?

It causes the field to be circular

Nothing happens until an iron core is added

It concentrates the field and directs it toward the helix ends

2. How does a solenoid switch work?

A magnet can be drawn into the solenoid, breaking electrical contact

The helix of the solenoid switches electricity on and off

The magnetic filled can affect nearby switches to turn them off

3. What happens to the magnetic field when an iron rod is placed in the solenoid?

The field greatly increases

The field is neutralized

It depends on how long the rod is in the solenoid

If you got all three correct, you are on your way to becoming a Champion in Physics. If you had problems, you had better look over the material again.

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Be proud of your accomplishments

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Resources and references

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Solenoids as Magnetic Field Sources - HyperPhysics

Solenoid - Wikipedia

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Where are you now?

School for Champions

Magnetism topics

Mini-Quiz: Solenoids are Electromagnetic Devices

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Magnetism topics

• Basics of Magnetism
• Detection of a Magnetic Field
• Confusion About North Magnetic Pole

Ferromagnetism

• Magnets
• Magnetic Force
• Factors Determining Magnetic Properties
• Classifications of Magnetic Materials

Electromagnetism

• Basics of Electromagnetism
• Moving Charges Create Magnetic Field
• Lorentz Force from Magnetic Field
• Electromagnets
• Electromagnetic Devices
• Solenoids are Electromagnetic Devices

Also see

• Physics Survey Results
• Physical Science
• Physical Science
• Astronomy
• Chemistry
• Good Grades

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