Find the magnitude of the electric field at a point $4 c m$ away from a line charge of density $2 \times 10^{- 6} C m^{- 1}$ .

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Solution

let the diagram be:
$E$ due to a linear charge density is
given by
$D = \frac{λ}{2 π \in_{0} r}$
$\Rightarrow E = \frac{2 \times 10^{- 6}}{2 π \in_{0} \times 0.04}$
$E = 9 \times 10^{5} N / C$

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Find the magnitude of the electric field at a point 4cm away from a line charge of density 2×10−6Cm−1.

let the diagram be:E due to a linear charge density is given byD=λ2π∈0r⇒ E=2×10−62π∈0×0.04E=9×105 N/C

Find the magnitude of the electric field at a point $4 c m$ away from a line charge of density $2 \times 10^{- 6} C m^{- 1}$ .

let the diagram be:
$E$ due to a linear charge density is
given by
$D = \frac{λ}{2 π \in_{0} r}$
$\Rightarrow E = \frac{2 \times 10^{- 6}}{2 π \in_{0} \times 0.04}$
$E = 9 \times 10^{5} N / C$