Exploring the Effects of Magnetic Fields on Metal Boxes: What Happens Inside?

In summary, the conversation discusses the concept of magnetic fields and their relationship to Faraday's law and Lenz's law. The use of eddy currents and the magnetic permeability of copper are also mentioned as important factors in understanding this concept.
  • #1
Jahnavi
848
102

Homework Statement


copper box.png


Homework Equations

The Attempt at a Solution



I have honestly no idea about this concept . Book doesn't mention anything about this . This looks similar to Faraday cage in electrostatics . But I don't understand how this works in case of magnetic fields .

Is this related to eddy currents or high permeability of metal ?
 

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  • #3
Sorry . I can't see how the above two play a role . Could you explain .
 
  • #4
The hint I can give you is Eddy currents.
Once you look up the permeability of copper you will realize that there is no high-permeability shielding involved. But by faraday, a time-changing B field induces currents which will set up their own B fields. Combine this fact with what scottdave hinted about Lenz's laws and you should be able to come up with an idea.
 
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Likes scottdave, Jahnavi and Charles Link
  • #5
Thanks !
 

Related to Exploring the Effects of Magnetic Fields on Metal Boxes: What Happens Inside?

What is a magnetic field?

A magnetic field is a region in which a magnet or electric current can exert a force on other objects. It is created by the movement of electrically charged particles, such as electrons, and is characterized by both direction and strength.

How does a magnetic field interact with a metal box?

A metal box can act as a shield against a magnetic field, depending on the material and thickness of the box. If the box is made of a conductive material, it can redirect or absorb the magnetic field, preventing it from passing through the box.

Can a magnetic field penetrate a metal box?

It is possible for a magnetic field to penetrate a metal box, depending on the strength of the field and the material and thickness of the box. However, the field may be significantly weakened or distorted as it passes through the box.

What is the effect of a magnetic field on electronic devices inside a metal box?

A magnetic field can induce electric currents in electronic devices inside a metal box, which can lead to interference or malfunctions. It is important to shield sensitive electronic equipment from strong magnetic fields to prevent damage.

How can the magnetic field inside a metal box be measured?

The strength and direction of a magnetic field inside a metal box can be measured using a magnetometer, which is a device that detects and measures magnetic fields. It is important to note that the presence of the metal box may affect the accuracy of the measurements.

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