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2. Given that in free space p = 10nC/m³ for 0 <r<3cm, p₁=30nC/m³ for 3 <r<5cm and p₁=0 for r> 5cm. a) How
many regions this problem has? b) Find Ď at r= 2cm. c) Find Ď at r = 4cm. d) Find Ď at r= 6cm. (Note: determine
Qenclosed in the corresponding region and notice the the density is uniform so what is the easy way to find charge.)

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