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Electricity and Magnetism

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Field Due to Sheets of Uniform Surface Charge Density

EANDM-MURSYD

Two large insulating sheets of uniform charge density are placed parallel to each other as shown in the figure below. The left hand sheet has a surface charge density of $+\sigma$ Coulombs per square meter whereas the right hand sheet has a surface charge density of $- \sigma$ Coulombs per square meter.

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At which of the four points labelled A through D will the electric field be zero. Select ALL that apply.

A

A

B

B

C

C

D

D