HC A long silver rod of radius 2.6 cm has a charge of -3.5 on its surface. Here is a unit vector cm directed perpendicularly away from the axis of the rod as shown in the figure. (a) Find the electric field at a point 4.9 cm from the center of the rod (an outside point). N E = Î (b) Find the electric field at a point 2 cm from the center of the rod (an inside point) N C E =

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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.