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Consider an infinite non-conducting plane with uniform charge per unit area -a i) Sketch the field...

Consider an infinite non-conducting plane with uniform charge per unit area -a i) Sketch the field lines. ii) Use Gauss’s Law to calculate the magnitude ofthe field. [Hint: consider theflux ofthe electricfield through a cylindrical closed surface element.] iii) Ifanoppositelychargedinfiniteplaneofchargedensity+aisbroughtclosetothefirst plane, sketch the new field. iv) Describe how the field is changed if the non-conducting plates are no longer infinite in extent.

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