Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

#12 Two planes of charge with no thickness, A and B, are parallel and vertical.

ID: 2078896 • Letter: #

Question

#12 Two planes of charge with no thickness, A and B, are parallel and vertical. The electric field in the region between the two planes has magnitude sigma/epsilon_0. The electric field in the region to the left of A and the electric field in the region to the right of B may have the magnitudes 0, 0. Sigma/epsilon_0, sigma/epsilon_0. 2 sigma/epsilon_0, 2 sigma/epsilon_0. given in any answer above. given only in answer (a) or (b) above. Three infinite planes of charge, A, B and C, are vertical and parallel to one another. There is a uniform electric field E vector to the left of plane A and a uniform electric field E vector to the right of plane C. The field E vector points to the left and the field E vector points to the right. The signs of the charges on plates A, B and C may be -, -, -. +, -, -, . +, -, +. +, +, +. any one of the above. A positive point charge q is placed off center inside an uncharged metal sphere insulated from the ground as shown. Where is the induced charge density greatest in magnitude and what is its sign?

Explanation / Answer

We know electric field due to infinite planes is constant and is independent of distance .

given electric field to the left of plane A points to the left ,it means net charge should be positive at left side

Similaly electric field to the right of plane C is toward right so here also charge should be positve as Electric field due to posotive charge only will run away from charge

so order of charge is

+++

+-+

so option (c) and (d) are correct

if electric fied between them is zero then correct option is

+++

so correct answer is option (d)