Question

A hollow cylinder has a charge q coulomb within it. If f the electric flux in units of volmeter associated with the curved surface B , the flx linked with the plane surface A in units of V-m will be :

• A. $\frac{q}{2{\epsilon }_0}$
• B. $\frac{\Phi }{3}$
• C. $\frac{q}{{\epsilon }_0}$
• D. $\frac{4q}{{\epsilon }_0}$

Answer 1

The correct option is C $\frac{q}{{\epsilon }_0}$

Charge $=qC$

associated with the curved surface $=B$

Now, using Gauss law,

$\varphi =$ the flux linked with the plane surface $A$ in units of $V-m$

$=\frac{q}{{ϵ}_0}$