I cannot understand magnetic field

  • Thread starter k9b4
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  • #1
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I have read quite a number of articles on the magnetic field, and I still do not understand.

What is a magnetic field? How is it different to electric field?

I understand that electric field is created by charged particles, but what creates magnetic field?

Why do we even need the concept of a magnetic field? What does it do?
 

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  • #2
davenn
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I understand that electric field is created by charged particles, but what creates magnetic field?
its also created by moving charged particles, namely electrons

Why do we even need the concept of a magnetic field? What does it do?
Are you really seriously asking that ?

how about listing all the things a magnetic field is used for in different applications
There's 2 sets for you to think about
electromagnets and permanent magnets

here's a couple to start you off

an electric motor or generator
an electro magnet ( has a bunch of individual uses in different products)

you start searching and listing lots of others in this thread :)

Dave
 
  • #3
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Magnetic field doesn't exist. Only the electric field exists.
 
  • #4
Vanadium 50
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Why do you post such nonsense?
 
  • #5
davenn
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Magnetic field doesn't exist. Only the electric field exists.
as V50 said ... Why do you post such nonsense?

why would you make such a silly comment ?

have you not played with 2 permanent magnets and seen how the ends can repel or attract each other
because of the magnetic field ?

Dave
 
  • #6
Drakkith
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Magnetic field doesn't exist. Only the electric field exists.
Both the electric and magnetic fields are just different aspects of the combined electromagnetic field. We can think of each one as a different "pure" effect that can be smoothly transformed into the other. For example, a "pure electric field" can nearly be seen as a "pure magnetic field" simply by passing by the field at extreme velocity. At a slower velocity the field would look like a mix of both an electric field and a magnetic field.
 
  • #7
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Magnetic field doesn't exist. Only the electric field exists.
This is not acceptable. This thread is closed. Do not repost this topic.
 

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