Q1(b) A spherical charge cloud in space has a charge density p such that: р p= {p(r), 0

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Q1(b) A spherical charge cloud in space has a charge density p such that: р p= {p(r), 0 <r <a a <r 0 = It is known that, for 0 <r<a, there is an electric field 5 E(r) = Er Determine: (i) (r), for 0<r<a. (5 marks) (ii) E(r), for a <r. (5 marks)