A50 mg point particle with a charge of +6 nc is resting on the bottom of two parallel plates. calculate the particle's 2. acceleration if the plates are suddenly given a surface charge density of 7x10-scrn-2. assume the plates to be infiinite and the bottom plate recieves the positive charge. consider two identical charged balls hanging from the ceiling by strings of equal length 1.1 m (in equilibrium). each ball has a charge of q = 34 c. the balls hang at an angle 0 22° with respect to the vertical. what 3. f6 18 f9 10 f11 612 pouse 帐

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

from wikipedia

answer///terminator or twilight zone;