Two metal spheres of different sizes are charged such that the electric potential is the same at the surface of each. sphere a has a radius 2 times that of sphere b. let qa and qb be the charges on the two spheres, and let ea and eb be the electric-field magnitudes at the surfaces of the two spheres. what is the ratio qb/qa? what is the ratio eb/ea?

Atriangle with equal sides of length 10 cm has -2.5-nc charged objects at each corner. part a determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. horizontally rightward vertically downward vertically upward horizontally leftward