In the figure a thin glass rod forms a semicircle of radius…
In the figure a thin glass rod forms a semicircle of radius r = 2.03 cm. Charge is uniformly distributed along the rod, with +q = 5.95 pC in the upper half and -q = -5.95 pC in the lower half. What is the magnitude of the electric field at P, the center of the semicircle? Answer in N/C. *Hint: consider symmetry and the direction as you solve.
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