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Electric Fields and Electric Potential

Four quick conceptual questions: 1) Is the electric field (E = -delta V / delta s) always a positive number (or zero)? That is, is it always the absolute value of the magnitude of the electric field? Or can it have a negative value? 2) Is electric potential (delta V) always negative? The answer to one of the questions in m


Two positive chrages, when combined, give a total charge of +8.7 micro Couloumbs. When the charges are seperated by 3.00 meters, the force exerted by one charge on the other has a magnitude of 8.30E-3 Newtons. Find the amount of each charge.

Find the electric field at the point P.

An electric dipole is constructed out of two point charges of equal magnitude q and opposite signs, separated by a distance d, as shown in the attached diagram. Find the electric field at the point P. The two charges are each a distance r from point P.

Two small charged spheres hang at equilibrium: tension, force

Two identical small charged spheres, each having a mass of 3X10^-2kg, hang at equilbrium. The length of the string is .2m, the angle between each string and the perpendicular is 10 degress. A=.034M A) What is the tension in the string B) Electric force felt by each sphere C) Charge of each sphere D) If the spheres were neg

component of the electric field Ey

1) Given: V = αx2y2 + βz2(x2 - γ) + δy3z Where α = 5 V/m4, β = 6.6 V/m4, γ = 3.4 m2, and δ = 5.3 V/m4. What is the y component of the electric field Ey at (4.6m, -4 m, 4.7 m)? Answer in units of V/m. 2) The electric potential in a certain region is:

Finding electric charge on each sphere: given total charge

Each of two small spheres is charged positively, the combined charge being 5 x 10^-5 C. If each sphere is repelled from the other by a force of one newton, when the spheres are two meters apart, how is the total charge distributed between the two spheres ?

Physics: 5 problems, Electric Forces and Electric Fields

See attached file. 1. An electron is released a short distance above Earth's surface. A second electron directly below it exerts an electrostatic force on the first electron just great enough to cancel the gravitational force on it. How far below the first electron is the second? 2. Three charges are arranged as shown in

Like charges on two identical balls

Two identical metal balls bear the same amount and sign of electric charge because they have been touched together. The mass of each ball is 2.00 grams. One ball is mounted on an insulating post. The other ball is suspended from a bifilar silk thread suspension system so that it can move on a 0.500 meter radius. When the two

Working with electric forces, field and potentials.

Two positive charges, charge q0 are fixed on the x axis at positions +a and -a. a) What is the Electric Field anywhere in the (x,y) plane, at position (x,y)? Be sure your answer clearly denotes the vector nature of the electric field. b) What is the electric potential at position (x,y)? c) A third charge, q3 , (mass m3