In: Physics
Two point charges, A and B. Charge A is located at the origin and Charge B is on the x axis at x=40.0 cm.
a) Let the charge of A is +3Q and the charge of B is +Q. If charge B exerts 50.0N on A, find the magnitudes of Q in Coulomb.
b) If A has +2.00 x10^(-6)C and B has -3.00x10^(-6)C, find the possible locations along the x-axis with zero electric potential.
c) Let A has +2.00x10(-6)C and B has -3.00x10(-6)C. What is the electric field E of point P, which is at (x=40.0cm, y=30.0cm)?
d) Let A has +2.00 x10(-6)C and B has -3.00x10(-6)C. How much work is needed to move an electron (-1.6 x 10^(-19) C) from x=50.0cm to x=10.0cm?
Please explain all parts, thanks.
denominator in expressions of electric potential and electric potential energy is distance.