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Homework Statement
A long non-conducting cylinder has a charge density ρ = αr, where α = 6.34 C/m4 and r is in meters. Concentric around it is a hollow metallic cylindrical shell.
Diameter 1: 4.36 cm
Diameter 2: 10.4 cm
Diameter 3: 16 cm
What is the direction of the electric field at 14.1 cm from the central axis.
1. Points Radically Outward
2. Points radically Inward
3. Undetermined, since the firld is zero
4. The electric field is not a vector and therefore has no direction
Homework Equations
The Attempt at a Solution
Soo...since the question stated 14.1 cm from the central axis. this is outside of the cylinder. the electric field exists? so it would be pointing radically outward?
I choose radically outward
this is incorrect!
So at this point I am unable to come up with a reason why it is not pointing radically outward?
My next assumption is that it would be pointing in the x-axis however that is not an option, and i am unsure how to relate it to the other three options. any help would be greatly appreciated.
Thank you