Figure $1$ shows two infinity long coaxial conductor shells with radii of $R$ and $2R$ and with surface

$L(n)$ charge densities $of+$ and $-2$ where $>0.$ A thin infinite long rod with a positive linear

charge density $of+is$ placed along the axis $of$ the cylinders. Find the electric fields for

$E_{r0\text{a}\text{n}\text{d}\text{a}\text{c}\text{o}\text{n}\text{d}\text{u}\text{c}\text{t}\text{o}\text{r}\text{w}\text{i}\text{t}\text{h}a}$

surface charge

$-2{}^{\text{'}}(2)c$

Fig

Fig$\mathrm{.}1.$ Problem

$D=$EFcos$=\frac{1}{{}_0}q{q}_{n}P=\frac{q}{EA}E$ Sphere $-\frac{0}{{}_0(4R^2)}$

$Q=\frac{{}^4}{3}{R}^2{Q}_{\text{s}\text{o}\text{f}\text{f}\text{o}\text{c}\text{e}}=+P_{3}q,$ARA$=?VB=?,r=R,x=5R2r$

Figure $1$ shows two infinity long coaxial conductor shells with radii of $R$ and $2R$ and with surface

$L(n)$ charge densities $of+$ and $-2$ where $>0.$ A thin infinite long rod with a positive linear

charge density $of+is$ placed along the axis $of$ the cylinders. Find the electric fields for

$E_{r0\text{a}\text{n}\text{d}\text{a}\text{c}\text{o}\text{n}\text{d}\text{u}\text{c}\text{t}\text{o}\text{r}\text{w}\text{i}\text{t}\text{h}a}$

surface charge

$-2{}^{\text{'}}(2)c$

Fig

Fig$\mathrm{.}1.$ Problem

$D=$EFcos$=\frac{1}{{}_0}q{q}_{n}P=\frac{q}{EA}E$ Sphere $-\frac{0}{{}_0(4R^2)}$

$Q=\frac{{}^4}{3}{R}^2{Q}_{\text{s}\text{o}\text{f}\text{f}\text{o}\text{c}\text{e}}=+P_{3}q,$ARA$=?VB=?,r=R,x=5R$

Figure $1$ shows a positively charged particle is at a distance from a straight wire carrying a current in the direction. The particle moves with a velocity of at angle above the axis. Find the magnetic force acting on the particle. Identify a location at the same distance where a negative point charge can be placed to produce an electric force on the particle in the direction opposite to the magnetic force. Calculate the net force on the particle. Assume I$=5\mathrm{.}0$ A$,$ cm$,$ m$/$s and $.$

Figure $1$ shows a positively charged particle is at a distance from a straight wire carrying a current in the direction. The particle moves with a velocity of at angle above the axis. Find the magnetic force acting on the particle. Identify a location at the same distance where a negative point charge can be placed to produce an electric force on the particle in the direction opposite to the magnetic force. Calculate the net force on the particle. Assume I$=5\mathrm{.}0$ A$,$ cm$,$ m$/$s and $.$