A wireless antenna is an electrical device which converts electric currents into radio waves, and vice versa. Which antenna is used in wireless base stations and provides a 360 degree horizontal radiation pattern?

Heat from the sun reaches earth to a. radiation b. convection c. conduction

Atotal charge of –6.50 µc is uniformly distributed within a sphere that has a radius of 0.150 m. what is the magnitude and direction of the electric field at 0.300 m from the surface of the sphere? a) 2.89 × 105 n/c, radially inward b) 6.49 × 105 n/c, radially outward c) 4.69 × 105 n/c, radially inward d) 9.38 × 105 n/c, radially outward e) 1.30 × 106 n/c, radially inward

Which transition by an electron will release the greatest amount of energy? oa ob oc od