Question 477: Electrostats & Capacitance

Question

A long cylindrical volume contains a uniformly distributed charge of density $$\rho$$. The radius of cylindrical volume is R. A charge particle (q) revolves around the cylinder in a circular path. The kinetic energy of the particle is :

Accepted Answer

$${{m{v^2}} \over r} = {{2kho  	imes \pi {R^2}q} \over r}$$
$$ \Rightarrow {1 \over 2}m{v^2} = {{ho {R^2}q} \over {4{\varepsilon _0}}}$$

Answer

$${{\rho q{R^2}} \over {4{\varepsilon _0}}}$$

Answer

$${{\rho q{R^2}} \over {2{\varepsilon _0}}}$$

Answer

$${{q\rho } \over {4{\varepsilon _0}{R^2}}}$$

Answer

$${{4{\varepsilon _0}{R^2}} \over {q\rho }}$$

Electrostats & Capacitance

A long cylindrical volume contains a uniformly distributed charge of density $\rho$. The radius of cylindrical volume is R. A charge particle (q) revolves around the cylinder in a circular path. The kinetic energy of the particle is :

Choose the correct answer: