"the vector sum of all the forces exerted by an electrical or magnetic field (on a unit mass or unit charge or unit magnetic pole) at a given point in the field"@en-us . . . "field intensity"@en-us . . "field strength"^^ . "05100269-n"^^ . . "0"^^ . "104820918"@en-us . . "105100269"^^ . "103978432"@en-us . . "0"^^ . . "field strength"@en-us . . . .