Question

Three identical point charges each of charge q are located at the vertices of an equilateral triangle as in the figure shown below. The distance from the center of the triangle to each vertex is a. (a) Show that the electric field at the center of the triangle is zero. (Submit a file with a maximum size of 1 MB.) Choose Fieno file selected print.pdf Score: 1 out of 1 Comment: (b) Find a symbolic expression for the electric potential at the center of the triangle. (Use any variable or symbol stated above along with the following as necessary: ke for the Coulomb's constant.) (c) Give a physical explanation of the fact that the electric potential is not zero, yet the electric field is zero at the center All charges are equidistant from the center of the triangle. All charges are equal and the same sign. All we have to do is find the direction of each field at the center and sum the vectors As the center point call it x, the direction of the field from the top of

Answer 1

a l a a Note Electaic field direction always a way From Usitive Chege and atways towaids Hre neg ative Chaige anal infivite centes f a tui ange is zeo Net fiedd at (due to ym metsy) (bNet potenti cl at cente Ke + Ke Ke& a 3 Ke V VE a Ele ctic field is the ve ctor qnantity which at the centee ot a tui angle is cancle cut each athes Bnt the po tenti al is net ave tor qantity Therefore at cente frtential is net 2ee