ТЕМА 3: A hollow escera has an inside radius a= 2 cm and outer radius r b= 5 cm, as the picture shows. This cylinder has a density of positive charge per unit volume Po= 1.2 x 10-5 C/m³ . Find the electric field in the following cases: a) Er b ; d) E vs and, e) Emax (o = 8,8542-1012 C?Nm²)
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