Charges+Q1and –Q2are heldfixed from one another by a distance of d. Find the work done by an external applied force to move a –q from a distance d outside the negative charge (along a line joining the two fixed charges) toa pointdirectly in between thetwo fixed chargeswithoutchanging the kinetic energy of the charge, -q

electrical Potential in volts Pont (x,y) is V= (4y) f(x, y) = eTan %3D Determin for the the direction of movemen t int for for max rate of decrease In electrical potential and what is that rate of decrease?

Two small spheres carry charges of -2 nC and 8 nC and they are 20 cm apart in the air. Calculate a) the force between them b) the force between the same charges when the distance is doubled c) the force between the charges when we pour oil of relative permittivity 6 between the charges

I need help on Problem 2 Problem 2) For the resistor described in problem 1, suppose that the electric field between the plates is sustained 2.5*10^4 V/m. a) What is the work (in electron volts) done by the field on each electron as it crosses the gap between the plates? b) What is the work (in electron volts) done by the friction on each electron as it crosses the gap between the plates ? c) At what rate (in watts) is energy dissipated at heat ?