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Electricity and Magnetism

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Electric Field of a Charged Conducting Plane

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A conducting rectangle of length $\ell$= 10.0 m and $w=$5.2 m is given a net charge of $15\mu C$.

What is the magnitude of the electric field a distance of 3.0 mm away from the center of the conducing rectangle?

A

$3.3\times 10^{10}N/C$

B

$3.3\times 10^{4}N/C$

C

$3.6\times 10^{11}N/C$

D

$1.5\times 10^{12}N/C$