Summarize Maxwell\'s equations conceptually. Select the correct concepts. Check

Question

Summarize Maxwell's equations conceptually. Select the correct concepts.

Check all that apply.

Stationary electric charges produce constant electric fields. An electric field is produced by a constant magnetic field. There are magnetic charges. A magnetic field is produced either by an electric current or by a constant electric field. There are no magnetic charges. Stationary electric charges produce changing electric field. A magnetic field is produced either by an electric current or by a changing electric field. An electric field is produced by a changing magnetic field.

Explanation / Answer

the correct statements are,

1)

Stationary electric charges produce constant electric fields (from the Gauss-law in electrostatics)

  
2)

There are no magnetic charges(from the Gauss-law in magnetism)    

3)

A magnetic field is produced either by an electric current or by a changing electric field ( from the Ampere-maxwell law)
  

4)

An electric field is produced by a changing magnetic field(Farady's law)

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