Question

PLEASE ANSWER THIS!!!!! Calculate the electric potential due to .001 coulomb of charge at a distance of 100cm

Answer 1

Point charges, such as electrons, are among the fundamental building blocks of matter. Furthermore, spherical charge distributions (like on a metal sphere) create external electric fields exactly like a point charge. The electric potential due to a point charge is, thus, a case we need to consider. Using calculus to find the work needed to move a test charge qfrom a large distance away to a distance of r from a point charge Q, and noting the connection between work and potential (W = −qΔV), it can be shown that the electric potential Vof a point charge is V=kQrV=kQr(Point Charge), where k is a constant equal to 9.0 × 109 N · m2/C2.

ELECTRIC POTENTIAL V OF A POINT CHARGE

The electric potential V of a point charge is given by

V=kQrV=kQr(Point Charge)

The potential at infinity is chosen to be zero. Thus V for a point charge decreases with distance, whereas E for a point charge decreases with distance squared:

E=Fq=kQr2