what is magnitude of point charge choosen so that electric field 50 cm away has magnitude 2 Newton pr. coulomb
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An electric fie.ld (sometimes E-field) is the physical field that surrounds each electric charge and exerts force on all other charges in the field, either attracting or repelling them. Electric fields originate from electric charges, or from time-varying magnetic fields. Electric fields and magnetic fields are both manifestations of the electromagnetic force, one of the four fundam.ental forces (or interactions) of nature.
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