Please help me solve the following Electric Properties of Conductors questions!
ID: 1589627 • Letter: P
Question
Please help me solve the following Electric Properties of Conductors questions!
OF CONDUCTORS 1. At t, a metal sphere is given a uniform volume charge density, with total charge +2. Consider the following student discussion Student 1: "The charges are uniformly distributed throughout the sphere, so the distribution Student 2: I disagree. The electric field inside the sphere isn't zero, so charges wilk feel a Use the following questions as a guide to determine which student, if should be stable. Charges won't move after to" force at to and will move. That means the distribution isn't stable." either, is correct. Gaussian surface A spherical Gaussian surface is centered inside the sphere. a. At to, is the net flux through the Gaussian surface positive, negative, or zero? Uniformly charged sphere b. , in which direction is the electric field at point A? If the At electric field is zero, state so explicitly c. Which student, if either, is correct? Explain. 2. Two conducting plates are placed close together. The left plate is given a negative charge, and the right is given twice as much positive charge. The diagrams below show various distributions of charge on the two plates. Decide which arrangement is stable. Explain why each case is or is not stable. -120,1-1-129, +1 Excess charge evenly distributed on both surfaces Excess charge unevenly distributed on both surfaces Excess charge on inside surfacesExplanation / Answer
I have answered all the bits of first question and have left other questions as per the instruction by chegg,
So for the first question,
a) Electric flux is proportional to the number of electric field lines going through a normally perpendicular surface.
Inside a conductor in electrostatic equilibrium,the electric field is ZERO.Charges in a conductor redistribute themselves wherever they are needed to make the field inside the conductor ZERO. And thus the flus through the surface is also zero.
b) As mentioned above, there is electric field inside the sphere is zero.
c) Neither of the student is correct as the first states that the charge is distributed through out the sphere which is not the case, it is only uniformly distributed at the sphere surface. The second student says the flux is non zero whereas flux is always zero inside a conductor.