Three concentric spherical shells r=1, 1-2, and r=3 cm, respectively, have charge distributions 2, -4, and 5 nC/m². (a) Calculate the flux through r-1.5 cm and r=2.5 cm. (b) Find the E and D fields at r=0.5, 1-2.5, and r = 5 cm.

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.