Acapacitor is connected to a resistor and an ac voltage source. the output of the source is given by 0- vo cos ear. at a point between the plates of the capacitor a) there is a time varying magnetic field induced by a time varying electric ficld. b) there is a constant magnetic field induced by a constant and uniform electric field. c) there is no magnetic field, because no current flows between the plates. d) there is a nonzero magnetic field due to ampere's law e) there is a nonzero magnetic field created by the charges moving in the space between the plates.

b.transmitters send radio waves, and receivers capture radio waves.

the answer is a)

mark brainliest

need to see circuit to get time constant

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