A thick insulating spherical shell of inner radius a=1.5R and outer radius b=6R has a uniform charge density p. PR What is the magnitude of the electric field at r=8.6 R ? Express your answer using one decimal place in units of €0
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- A conducting sphere is placed within a conducting spherical shell. The conductors are in electrostatic equilibrium. The inner sphere has a radius of 1.50 cm, the inner radius of the spherical shell is 2.25 cm, and the outer radius of the shell is 2.75 cm. The inner sphere has a charge of 228 nC and the spherical shell has zero net charge. What is the electric field at a point 3.80 cm from the center? Enter a positive answer if the electric field is directed away from the center and a negative answer if the electric field is directed toward the center.In the figure a thin glass rod forms a semicircle of radius r = 4.74 cm. Charge is uniformly distributed along the rod, with +q = 4.39 pC in the upper half and -q = -4.39 pC in the lower half. What is the magnitude of the electric field at P, the center of the semicircle? P. Number i UnitsAn infinitely long object consists of an inner cylinder of radius a which has a uniform positive volume charge density p > 0 and a concentric thin cylinder of radius b which has a uniform negative surface charge density o0 Figure 7: A cross-sectional view of two cylinders c) Calculate the electric field for r > b. b 0 <0 d) Calculate the electric potential difference for rA thick insulating spherical shell of inner radius a=1.2R and outer radius b=9.8R has a uniform charge density p. PR, What is the magnitude of the electric field at r=3.5 R ? Express your answer using one decimal place in units of €0A conducting sphere is placed within a conducting spherical shell. The conductors are in electrostatic equilibrium. The inner sphere has a radius of 1.50 cm, the inner radius of the spherical shell is 2.25 cm, and the outer radius of the shell is 2.75 cm. The inner sphere has a charge of 228 nC and the spherical shell has zero net charge. What is the electric field at a point 3.80 cm from the center? Enter a positive answer if the electric field is directed away from the center and a negative answer if the electric field is directed toward the center.The electric field just above the surface of the charged drum of a photocopying machine has a magnitude E of 3.0 × 105 N/C. What is the surface charge density on the drum, assuming that the drum is a conductor? Number Units