Calculating Electric Fields in a Gieger Counter

AI Thread Summary
To calculate the electric field at the surface of the wire in a Geiger counter, the relevant formula is E = λ/(2πE₀r), where λ is the linear charge density and E₀ is the permittivity of free space. The potential difference of 890 volts between the wire and the cylinder can be used to determine the electric field by integrating the electric field over the distance from the wire to the cylinder. The tension in the wire and its dimensions, including the inner diameter of the cylinder and the wire's outer diameter, are crucial for accurate calculations. Clarification on the specific goals of the calculations is necessary for further assistance. Understanding these principles will aid in solving the problem effectively.
choole
Messages
6
Reaction score
0
A particular Gieger counter has a metal cylinder with an inner diameter of 2 cm along whose axis is stretched a wire with 44 N of tension. The potential difference between the wire and the cylinder is 890 volts. The wire has a length of 6 cm and an outer diameter of 1.5 X 10-4 cm.
A. To find the electric field at the surface of wire?
B To find the electric field at the inner surface of the cylinder

Vf - Vi = int(E dot ds) from radius of wire to cylinder.
and E = lemda/2piE0r

i tried solving like this but i didn't get the answer. Please help
 
Last edited:
Physics news on Phys.org
It is not clear to me what your goal is? What are you looking for?
 
Integral said:
It is not clear to me what your goal is? What are you looking for?
To find the electric field at the surface of the wire?
 
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
View full post »

Similar threads

What is the electric field inside an infinite cylinder?
Replies
7
Views
3K
Electric Field Inside Cylindrical Capacitor
Replies
2
Views
2K
Calculate the maximum voltage that can be applied
Replies
5
Views
2K
Electric field with electric potential
Replies
6
Views
1K
This formula is applicable for a point charge distribution.
Replies
1
Views
2K
Electric field between inner and outer cylinder
Replies
2
Views
3K
How an Electric Field is affected by an Insulator
Replies
2
Views
3K
Find the electric field between 2 finite discs
Replies
16
Views
1K
Electric Potential: Geiger Coutner
Replies
7
Views
2K
Concept of electric field and hollow conductors
Replies
13
Views
2K

Hot Threads

Recent Insights

Back
Top