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Q.

Two parallel infinite line charges with linear charge densities $+ λ C / m$ and $- λ C / m$ are placed at a distance of 2R in free space. What is the electric field mid way between the two line charges ?

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a

$zero$

b

$\frac{2 λ}{π ε_{o} R} N / C$

c

$\frac{λ}{π ε_{o} R} N / C$

d

$\frac{λ}{2 π ε_{o} R} N / C$ q

answer is C.

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Detailed Solution

$E = \frac{λ}{2 π ε_{o} r}$

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