Electric Field vs. Magnetic Field
An electric field is an invisible force field caused by an electric charge resulting in an alteration of space (air or vacuum) around the charge. A magnetic field is an invisible force field generated by a moving electric charge (current), spinning electrons, and magnets.
How are Magnetic and Electric Fields Similar
Both electric field and magnetic field are two aspects of the same concept. Both are components of an electromagnetic wave moving perpendicular to each other. A changing electric field produces a magnetic field, and a changing magnetic field produces an electric field (Faraday’s Law). Maxwell’s equations explain the relationship between the two.
Electric and magnetic fields are vector quantities represented by invisible lines drawn around objects generating them.
Difference Between Electric and Magnetic Field
|Electric Field||Magnetic Field|
|Definition||Invisible force field generated by an electric charge, which can be stationary or moving||Invisible force field generated by a moving charge, spinning electrons, and magnets|
|Where is it formed||Between positive and negative voltage potentials||Between two pole pieces of a magnet|
|Formula||E = F/q||B = φ/A|
|SI Unit||Newton/Coulomb or Volt/meter||Tesla|
|Directly proportional to||Charge||Current|
|Inversely proportional to||Distance||Distance|
|Force||Proportional to the electric charge||Proportional to the electric charge velocity|
|Monopole||Exist||Does not exist|
|Source and sink||Exist||Does not exist|
|Divergence||∇. E = ρ/ε||∇. B = 0|
|In electromagnetic waves||Perpendicular to the magnetic field||Perpendicular to the electric field|
|Field lines||Originates from a positive charge and terminates at a negative charge||Originates from the north pole and terminates at the south pole|
|Do field lines form a closed-loop||No||Yes|
Article was last reviewed on Friday, July 23, 2021