Two large, parallel, conducting plates are 15 cm apart and have charges of equal magnitude and opposite sign on their facing surfaces. An electrostatic force of 4.8 × 10-15 N acts on an electron placed anywhere between the two plates. (Neglect fringing.) (a) Find the electric field at the position of the electron. (b) What is the potential difference in volts between the plates?

Levitation: The largest electric field strength you can create in air before dielectric breakdown (a spark) occurs is about 3.0 x 10°V/m. Suppose you created an electric field with this strength – pointing directly upward – between a set of parallel plates that are 9.9cm apart. You want to use this system to levitate water droplets with a mass of 1.8g. (a) How much charge would you have to put on a droplet to make it levitate? (b) Suppose that 43 charged droplets are levitating and the field strength suddenly drops by 24 percent, to about 2.3 x 106 V/m, how quickly would the droplets accelerate? E

We assemble a group of three charges, each of + 2.0 µC, bringing them in from infinite distance, where we set V = 0. We put the first charge at x = 0 cm, then put the second one at x = 10 cm, and last put the third one at x = 20 cm. What was the total work done by the applied force? (Hint: At each step, W_applied = + Delta(PE) = + q Delta(V), where q is the charge you're bringing in now and V is determined by the charges that are already in place.)

Two uncharged spheres are separated by 2.50 m. If 3.10 ✕ 1012 electrons are removed from one sphere and placed on the other, determine the magnitude of the Coulomb force (in N) on one of the spheres, treating the spheres as point charges.

Two large, parallel, conducting plates are 11 cm apart and have charges of equal magnitude and opposite sign on their facing surfaces. An electrostatic force of 4.5 x 10-15 N acts on an electron placed anywhere between the two plates. (Neglect fringing.) (a) Find the electric field at the position of the electron. (b) What is the potential difference in volts between the plates? (a) Number i (b) Number i Units Units

Two uncharged spheres are separated by 2.80m. If 3.70 ×10^12 electrons are removed from one sphere and placed on the other, determine the magnitude of the coulomb force on one of the spheres , treating the spheres as point charges.

Two large, parallel, conducting plates are 9.5 cm apart and have charges of equal magnitude and opposite sign on their facing surfaces. An electrostatic force of 3.8 × 10-15 N acts on an electron placed anywhere between the two plates. (Neglect fringing.) (a) Find the electric field at the position of the electron. (b) What is the potential difference in volts between the plates? (a) Number i (b) Number i Units Units

A particle (charge= 2.1x10^-6 C) is released from rest at a point x=10.1 cm. If a 42.3x10^-6 C charge is held fixed at the origin, what is the kinetic energy of the particle after it has moved 92.8 cm?