on of the electric field along the axis of the rod at a point 38.0 cm from its center.
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Length of rod L = 12Cm = 0.12m
L/2 = 0.06m
Total charge on the rod Q = -25uC = -25x10-6 C
Electric field at the point is D = 38Cm = 0.38m
Coulomb constant K = 9x109 Nm2 /C2
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