Recent content by dada130500015

Homework Statement A conducting sphere of 5-cm radius has a surface charge density of 1 pC/m^2. If the medium of relative permittivity is 2. How can we find the absolute potential at a distance of 3m from the center of the sphere? Homework Equations V=Q/4∏εr The Attempt at a...

In Q1, the ρ is the density i think. Here is the step for Q1: a), E=ρL/2∏ε0ρ = (5*10-9/2*∏*ε0*42)*4z =22.5z V/m b), E={5*10-9/2*∏*ε0*(32+42)}*(3y+4z) =10.8y + 14.4z V/m For Q2, i still can't got the answer that using the E=σ/2ϵ0, in this question i just calculate each of three with...

In Q1, the ρ is the density i think. Here is the step for Q1: a), E=ρL/2∏ε0ρ = (5*10-9/2*∏*ε0*42)*4z =22.5z V/m b), E={5*10-9/2*∏*ε0*(32+42)}*(3y+4z) =10.8y + 14.4z V/m For Q2, i still can't got the answer that using the E=σ/2ϵ0, in this question i just...

Homework Statement Q1,Infinite uniform line charges of 5 nC/m lie along the x and y axes in free space. Find E at (a), P(0, 0 , 4); and (b), P (0 ,3 , 4) Q2, Three infinite uniform sheets of charge are located in free space as follows: 3 nC/m2 at z= -4, 6 nC/m2 at z=1, -8 nC/m2 at z=4...