Anonconducting sphere contains positive charge distributed uniformly throughout its volume. which statements about the potential due to this sphere are true? all potentials are measured relative to infinity. (there may be more than one correct choice)
a) the potential is highest at the center of the sphere. b) the potential at the center of the sphere is the same as the potential at the surface. c) the potential at the surface is higher than the potential at the center. d) the potential at the center is the same as the potential at infinity. e) the potential at the center of the sphere is zero.
thermal energy is the answer
wavelegth as in spectrum red oygbiv
electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.
the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic