Question

Problem 2 The diagram above shows a crow-section view of a very long straight metal cylinder of radius ri within a coaxial hollow metal eylinder of inner radius rz atnd outer radius rs- The inser cylinder has -2A. There are no other objects nearby Part A length A, whereas the outer cylinder has negative charge per unit length (a) What is the shape of the electrie field in and around the cylinders? In your answer 0) explain why, in eloctrostatic equilibrium, the electric feld within each motal eylinder (re gious A and C) is aero, (u) explain why any electrie field in regions B and D must be radially symmetric and (ii) illustrate the shape of the field by drawing electric Seld vectors or field lines. (b) Derive from first principles an expression for the electric field magnitude in regions B and D ss of the distance r from the centre. Your answer should be in terms of the linear charge density, the relevant radil and the electrostatic coestant (c) Sketch the electric field maguitade as a function of the distance r from the centre of the cylinders. ls the dependence on r far away from the eylinders ws you expect? Explain Part B (Advaaced) (a) Using the results of Part A, or from firs principies, derive an espresioe for the potential (b) Suppose that a hollow neutral metal cylinder is placed around the inner cylinder but within the other one (without touching either). Would the potential differeace between the inser and out cylinders increase, , decrense, or stay the sue? Explain

PART A AND B PLEASE THIS IS ONE QUESTION. please explain in detail. and PLEASE label each parts of the question u are addressing (a,b,c etc) . ive posted this 3 times and still no correct response

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