First slide

Electric field

Question

Two infinitely long uniformly charged non-conducting sheets of charge density $σ = \sqrt{2} E_{0} x 10^{- 3}$ each are placed perpendicular to each other as shown in figure. What is the resultant electric field intensity at point P ?

Moderate

A

$10^{- 3} N / C$
B

$2 x 10^{- 3} N / C$
C

$\sqrt{2} x 10^{- 3} N / C$
D

1 N/C

Solution

$\vec{E_{1}} ⊥_{r} \vec{E_{2}} and E_{1} = E_{2} = \frac{σ}{2 e_{0}} = \frac{\sqrt{2}}{2} x 10^{- 3} So, E = \frac{2 x 10^{- 3}}{2} = 10^{- 3} N / C$

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