188
Physics Electrostatics Level: High School
A point charge q1 = + 2.40 micro C is held stationary at the origin . A second point charge q2 = -4.30 micro C moves from the point x = 0.150 m , y = 0m , to the point x = 0.250 m my = 0.250 m . How much work is done by the electric force on q2 ?
187
Physics Electrostatics Level: High School
An electron is projected with an initial speed V noat = 5.00 x 10^6 m/s into the uniform field between the parallel plates as shown in the figure "click here". The direction of the field is vertically downward, and the field is zero except in the space between the two plates . The electron enters the field at a point midway between the plates . If the electron just misses the upper plate as it emerge from the field , Find the magnitude of the electric field .
184
Physics Electrostatics Level: High School
100 'micro' C is deposited on a conducting sphere of Radius R . A second sphere of radius 0.5 R is brought into electrical contact with the first sphere . What is the final charge distribution between the two spheres? What is the resulting Coulomb force between the two spheres if their centre to centre separation is 10 R ?