- #1
Kudo Shinichi
- 109
- 1
HELP!A problem on electricity?
A Geiger counter consists of a metal cylinder 2.0 cm in diameter along whose axis is stetched a wire 0.013 cm in diameter. If 850 volts are supplied between them, what is the electric field strength at the surface of a) the wire and b) the cylinder?
I know the formula v=-E*d
v=voltage
E=electric field
d= distance between the charges where we are looking for potential difference
since I am given v
so, 850=-E*d
the problem also provides the diameter for both cylinder and wire, I can use them to get the length if I know either the area or volume for both of them. However, I don't, so is there any other way to get the length for both objects to solve for electric field?
Thank you very much
Homework Statement
A Geiger counter consists of a metal cylinder 2.0 cm in diameter along whose axis is stetched a wire 0.013 cm in diameter. If 850 volts are supplied between them, what is the electric field strength at the surface of a) the wire and b) the cylinder?
The Attempt at a Solution
I know the formula v=-E*d
v=voltage
E=electric field
d= distance between the charges where we are looking for potential difference
since I am given v
so, 850=-E*d
the problem also provides the diameter for both cylinder and wire, I can use them to get the length if I know either the area or volume for both of them. However, I don't, so is there any other way to get the length for both objects to solve for electric field?
Thank you very much