Chapter 4: Q32E (page 779)
A very long insulating cylinder of charge of radius cm carries a uniform linear density of . If you put one probe of a voltmeter at the surface, how far from the surface must the other probe be placed so that the voltmeter reads V.
Short Answer
The second probe should be placed at a distance of 2.3 cm from the surface of the cylinder to make the voltmeter measure 175 V.