A uniform surface charge of density sigma is given to a quarter of a disc extending up to infinity in the first quadrant of x-y plane. The centre of the disc is at the origin O. Find the z-component of the electric field at the point (0,0,z) and the potential difference between the point (0,0,d) and (0,0,2d)

A uniform surface charge of density sigma is given to a quarter of a d

1.	A uniform surface charge of density sigma is given to a quarter of a disc extending up to infinity in the first quadrant of x-y plane. The centre of the disc is at the origin O. Find the z-component of the electric field at the point (0,0,z) and the potential difference between the point (0,0,d) and (0,0,2d)
Answer» ANSWER :`(SIGMA)/(8 epsilon_(0))`

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