The figure shows a system consisting of three charges, q1=5μC, q2=5 μC, and q3= -5 μC, at the vertices of anequilateral triangle of side d= 2.7 cm. A) Find the magnitude of the electric field at a point halfwaybetween the charges q1 and q2.
B) Is the magnitude of the electric field halfway between thecharges q2 and q3 greater than, less than, or the same as theelectric field found in part (a)? Explain.
C) Find the magnitude of the electric field at the pointspecified in part (b).

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

Which atomic model was proposed as a result of j. j. thomson’s work?

To understand the behavior of the electric field at the surface of a conductor, and its relationship to surface charge on the conductor. a conductor is placed in an external electrostatic field. the external field is uniform before the conductor is placed within it. the conductor is completely isolated from any source of current or charge. part a: which of the following describes the electric field inside this conductor? it is in the same direction as the original external field. it is in the opposite direction from that of the original external field. it has a direction determined entirely by the charge on its surface. it is always zero. part b: the charge density inside the conductor is: 0non-zero; but uniformnon-zero; non-uniforminfinite part c: assume that at some point just outside the surface of the conductor, the electric field has magnitude e and is directed toward the surface of the conductor. what is the charge density η on the surface of the conductor at that point? express your answer in terms of e and ϵ0