<P> The term ' magnetic field ' is used for two distinct but closely related fields denoted by the symbols B and H. In the International System of Units , H is measured in units of amperes per meter and B is measured in teslas or newtons per meter per ampere . H and B differ in how they account for magnetization . In a vacuum , B and H are the same aside from units ; but in a magnetized material , B / μ 0 ( \ displaystyle \ mu _ ( 0 ) ) and H differ by the magnetization M of the material at that point in the material . </P>
what is the si unit for magnetic field strength
amperes per meter teslas or newtons per meter per ampere