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Two long, charged, thin-walled, concentric cylindrical shells have radii of 2.5 and 4.0 cm. The charge per unit length is 6.9 × 106 C/m
on the inner shell and -9.7 x 10-6 C/m on the outer shell. What are the (a) magnitude E and (b) direction (radially inward or outward)
of the electric field at radial distance r = 3.5 cm? What are (c) E and (d) the direction at r = 6.5 cm?
(a) Number
i
Units
(b)
(c) Number
Units
(d)
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