Electrostatic fields are denoted by (x, y, z). Magnetostatic fields are represented by (x, y, z). If electric and magnetic fields vary with time, then these fields are called “time-varying fields”. In static electromagnetic (EM) fields, electric and magnetic fields are independent of one another. In dynamic EM fields, the two fields are interdependent. A time-varying electric field always involves a corresponding time-varying field. Time-varying EM fields are represented as (x, y, z, t) and (x, y, z, t). Time-varying ...