{"result":{"text":"E equals fraction numerator K Q r over denominator R cubed end fraction\ntherefore space space V equals integral from 0 to R of fraction numerator K Q over denominator R cubed end fraction r d r equals fraction numerator K Q over denominator 2 R end fraction rightwards double arrow V equals fraction numerator Q over denominator 8 pi epsilon subscript 0 R end fraction"},"status":"ok"}