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A nonconducting ball of radius 10. cm has a total of .2 uc. The charge density varies with r given by the equation, )Find the constant A express your result in terms of variables and a value, include units. 2) Find an expression for the electric field inside the ball as a function of r express your result in terms of variables. Show that the electric field strength is constant, that is to say it does not vary with r.
3) Find an expression for the electric field outside the ball as a function of r 4) Show that both electric field equations in 2 and 3 give the same result at the edge of the sphere. 5) The radius of Star Killer Base is 330 km. After absorbing the mass of the nearby star what will the acceleration due to gravity be on the surface of Star Killer Base? (Assume the nearby star has the same mass as our Sun 1.99x10g)
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