Find the electric field at a point away from the charged cylinder's axis

[Fatima Hasan]

Homework Statement

Homework Equations

$E=\frac{kQ}{r^2}$

3. The Attempt at a Solution
$Q_{enclosed} = 0$ , because there is no charge inside the conducting cylinder.
E = 0
Can anyone check my answer please ?

 

[Doc Al]

because there is no charge inside the conducting cylinder.

The point in question is not inside the conducting material. It's at a point 10 cm from the axis, well beyond the conducting shell.

 

[Fatima Hasan]

The point in question is not inside the conducting material. It's at a point 10 cm from the axis, well beyond the conducting shell.

 

[Doc Al]

Note that the charge on the conducting shell is negative.

 

[Fatima Hasan]

Note that the charge on the conducting shell is negative.

 

[Doc Al]

Now you've got it.