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Similarities and differences in magnetic and electric field (Dilpreet posted this question)
Both electric and magnetic field are conservative forcesBoth obey inverse square law
Both are non contact forces (Forces can be exerted without contact)
Both are attractive as well as repulsive (Like poles repel, like charges repel; unlike poles attract, unlike charges attract)
Electric field is produced by […]
Why does the electric field inside a dielectric decrease when it is placed in an external electric field?
The net electric field inside a dielectric decreases due to polarization. The external electric field polarizes the dielectric and an electric field is produced due to this polarization. This internal electric field will be opposite to the external electric field and therefore the net electric field inside the dielectric will be less