This document is a 4-page assignment on building information systems submitted to Ms. Shaista Hussain of the Department of Computer Science and IT at The Islamia University Bahawalpur. Each page discusses the electric field of a different object using Gauss' law: page 2 discusses an infinite line charge, page 3 a conducting cylinder, and page 4 a cylinder of uniform volume charge density. All three pages state that considering a Gaussian surface in the form of a cylinder, the electric field is the same magnitude at every point and directed outward, with the electric flux equal to this field times the area.

1. Building Information System
Department ofComputer Science and IT
The Islamia University Bahawalpur Page 1
Assignment Topic: Building Information System
Submitted to: Ms. Shaista Hussain
Depart BSIT (morning)
 Nasir Aslam

2. Building Information System
Department ofComputer Science and IT
The Islamia University Bahawalpur Page 2
Electric Field of Line Charge
The electric field of an infinite
line charge with a uniform linear
charge density can be obtained
by a using Gauss' law.
Considering a Gaussian
surface in the form of a cylinder
at radius r, the electric field has
the same magnitude at every
point of the cylinder and is
directed outward. The electric
flux is then just the electric field
times the area of the cylinder.

3. Building Information System
Department ofComputer Science and IT
The Islamia University Bahawalpur Page 3
Electric Field: Conducting Cylinder
The electric field of an infinite cylindrical conductor with a
uniform linear charge density can be obtained by
using Gauss' law. Considering a Gaussian surfacein the form
of a cylinder at radius r > R, the electric field has the same
magnitude at every point of the cylinder and is directed
outward. The electric flux is then just the electric field times
the area of the cylinder.

4. Building Information System
Department ofComputer Science and IT
The Islamia University Bahawalpur Page 4
Electric Field: Cylinder of Charge
The electric field of an infinite cylinder of uniform volume
charge density can be obtained by a using Gauss' law.
Considering a Gaussian surface in the form of a cylinder at
radius r > R, the electric field has the same magnitude at
every point of the cylinder and is directed outward.
The electric flux is then just the electric field times the area
of the cylinder.