Problem: Which of the following statements are true concerning the creation of magnetic fields? Check all that apply. A. A distribution of electric charges at rest creates a magnetic field at all points in the surrounding region.B. A permanent magnet creates a magnetic field at all points in the surrounding region. C. An electric current in a conductor creates a magnetic field at all points in the surrounding region. D. A moving electric charge creates a magnetic field at all points in the surrounding region.E. A single stationary electric charge creates a magnetic field at all points in the surrounding region.

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Magnetic fields are created by permanent charges, moving electric charges and electric current.

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Problem Details

Which of the following statements are true concerning the creation of magnetic fields? Check all that apply. 

A. A distribution of electric charges at rest creates a magnetic field at all points in the surrounding region.

B. A permanent magnet creates a magnetic field at all points in the surrounding region. 

C. An electric current in a conductor creates a magnetic field at all points in the surrounding region. 

D. A moving electric charge creates a magnetic field at all points in the surrounding region.

E. A single stationary electric charge creates a magnetic field at all points in the surrounding region.

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