Find the strength of the electric field inside the cavity.
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Inside a sphere of radius R charged with constant volume density p, there is a spherical cavity of radius r, in which there are no charges. The center of the cavity is displaced relative to the center of the sphere by a distance a (a + r <R). Find the strength of the electric field inside the cavity.
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- The entire y axis is covered with a uniform linear charge density 4.9 nC/m. Determine the magnitude of the electric field on the x axis at x = 7.4 m.The entire y axis is covered with a uniform linear charge density 2.2 nC/m. Determine the magnitude of the electric field on the x axis at x= 5.5 m.Five charged particles are equally spaced around a semicircle of radius 100 mm, with one particle at each end of the semicircle and the remaining three spaced equally between the two ends. The semicircle lies in the region x<0 of an xy plane, such that the complete circle is centered on the origin. If each particle carries a charge of 6.00 nC , what is the electric field at the origin? Where could you put a single particle carrying a charge of -5.00 nC to make the electric field magnitude zero at the origin?
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