Use Task Manager. Another way of opening File Explorer is to use the Task Manager. You'll have to open Task Manager, switch to More details, select the File menu and then click or tap on Run new task. Inside the Create new task window, write explorer and press Enter or OK.
Sources of electric field. Causes and description. Electric fields are caused by electric charges or varying magnetic fields. The former effect is described by Gauss's law, the latter by Faraday's law of induction, which together are enough to define the behavior of the electric field as a function of charge repartition and magnetic field.
The field can be viewed as the combination of an electric field and a magnetic field. The electric field is produced by stationary charges, and the magnetic field by moving charges (currents); these two are often described as the sources of the field.The way in which charges and currents interact with the electromagnetic field is described by Maxwell's equations and the Lorentz force law.he electric field is produced by stationary charges, and the magnetic field by moving charges (currents); these two are often described as the sources of the field.