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electric force field

an electric force field is produced by
 
a.  moving magnetic field
b.  electron
c.  proton
c.  flow of electrons
e.  all of these
 
 
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1 Answer

1) A gravitational field exist around Every mass.
2a) An electric field exist around Every charge - Every charge both (+) and (-).
2b) An electric field exist around Every Changing magnetic field.
3a) A magnetic field exist around Every Moving charge.
      -  Note: every electron in an atom is moving.)
3b) A magnetic field exist around Every Changing electric field
 
So answer A is correct by 2b
So answer B is correct by 2a
So answer C is correct by 2a
So answer D is correct by 2a
So answer E is correct