Electric field of Plastic Pipes
Not what you're looking for?
A plastic pipe has an inner radius of a = 31.00 cm and an outer radius of b = 68.00 cm. Electric charge is uniformly distributed over the region a < r < b. The charge density in this region is 42.00 C/m3. Calculate the magnitude of the electric field at r = 0.29 m.
Calculate the magnitude of the electric field at r = 0.57 m. Calculate the magnitude of the electric field at r = 1.73 m.
I thought if I did E= lambda/2*pi*Eo*r, and placed the r asked I can solve this. But that was wrong. Why is this wrong?
Purchase this Solution
Solution Summary
The magnitude of the electric field is calculated at different radius'. The magnitude of the electric field is determined.
Solution Preview
Please see the attached file.
A plastic pipe has an inner radius of a = 31.00 cm and an outer radius of b = 68.00 cm. Electric charge is uniformly distributed over the region a < r < b. The charge density in this region is 42.00 C/m3. Calculate the magnitude of the electric field at r = 0.29 m.
Calculate the magnitude of the electric field at r = 0.57 m. Calculate the magnitude of the electric field at r = 1.73 m.
I thought if I did E= lambda/2*pi*Eo*r, and placed the r asked I can solve this. But that was wrong. Why is this wrong?
Answer:
Following figures show vertical and horizontal cross sections of the pipe. The shaded area shows the region in which electric charge is uniformly spread.
The charge is spread over the entire volume of the pipe and hence, we must calculate the total charge per unit length by considering the volume of the unit length of the pipe material as follows.
Electric ...
Purchase this Solution
Free BrainMass Quizzes
Introduction to Nanotechnology/Nanomaterials
This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.
Variables in Science Experiments
How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.
The Moon
Test your knowledge of moon phases and movement.
Classical Mechanics
This quiz is designed to test and improve your knowledge on Classical Mechanics.
Intro to the Physics Waves
Some short-answer questions involving the basic vocabulary of string, sound, and water waves.