How far from the surface must the other probe be

Reference no: EM13702635

Question: A very long insulating cylinder of charge of radius 2.10cm carries a uniform linear density of 15.0nC/m. If you put one probe of a voltmeter at the surface,

Part A: how far from the surface must the other probe be placed so that the voltmeter reads 200V?

I know the correct answer for above question but explain how to get this answer! Thanks.

Reference no: EM13702635

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