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- (10% ) Problem 7: An infinite conducting cylindrical shell of outer radius ri-0.10 m and inner radius r2 0.08 m initially carries a surface charge density 0.15 μC/m2 A thin wire with linear charge density 1.3 μC m s nserted along the shells' axis. The shell and the wire do not touch and these is no charge exchanged between them Banchi, Stephen - banchis3@students.rowan.edu @ theexpertta.com - tracking id: 2N74-2F-82-4A-BAAB-13083. In accordance with Expert TA's Terms of Service. copying this information to any solutions sharing website is strictly forbidden. Doing so may result in termination of your Expert TA Account. -a33% Part (a) What is the new surface charge density, in microcoulombs per square meter, on the inner surface of the cylindrical shell? -là 33% Part (b) What is the new surface charge density, in microcoulombs per square meter, on the outer surface of the cylindrical shell? 33% Part (c) Enter an expression for the magnitude of the electric field outside the cylinder (r…A point charge q is situated a distance a from centre of grounded conducting sphere of radius R, find (a) potential outside the sphere (b) force of attraction between charge and sphere (c) potential outside the sphere and force when second image charge is placed at center of sphere1. (a) Describe: (0) SULIT how we can create an electric field between two parallel identical copper discs separated by a distance d; and, (ii) the mechanism responsible for creating the electric field. [5/100] [5/100] (b) Consider two identical copper discs that are parallel to each other, and a distance, d, separates them. (i) Identify the factors that influence the strength of the electric field between two parallel, charged copper discs. (ii) [5/100] Describe how these factors increase or decrease the electric field magnitude. [5/100] (c) Consider two parallel infinitely large copper plates with opposite charges. Both plates have the same charge density magnitude, o. The thickness of the plate is negligible, and a distance d separates them. Using Gauss Law, express: (i) the electric field E at a distance x from the positive plate if the negative plate is absent; and (ii) [10/100] ...3/ SULIT Scanned with CamScanner -3- the electric field between the two parallel copper plates.…
- 4.) Figure Q.2 (b) shows a cylindrical structure with length of 50 m. The inner and the outer surface are separated by free space and located at r = a and r = b respectively. The inner and outer surface of the structure contain a total charge of +1pC and -1pC, respectively. An infinitely long line charge with line charge density of +1pC/m is introduced along the axis of the structure. Given that a = 1 mm and b = 2 mm. +pa C/m? -Рь С/m? Figure Q.2(b) i. Calculate +pa and -pp at radius a and b respectively ii. Find D and E in all regions iii. Sketch graph |D| versus rA molecule of DNA (deoxyribony clek the acid) is 2-13 μm long. The ends of molecule become singly Tonized; negative on one end, positive on the other. The helical molecule acts like a spring and Compresses 0-96% upon becoming charged. Determine the effective Spring constant of the molecule!) " (Answer in N/m)In the early 1900's Robert Millikan discovered the peculiar property that charge came in little packets, no smaller than e = 1.602 x 10-19 C -- he had measured the charge of the electron. Here's (roughly) how he did it. He removed an electron from an initially neutral droplet of oil with diameter 0.5 ??μm. In a vacuum, he positioned the droplet between two metallic plates separated by 6 mm and fiddled with the potential (voltage) across the plates until the droplet would hover against the force of gravity. Droplets of this size with +e charge would hover, but only for a particular voltage (otherwise they would sink or rise). Given the parameters stated here, and the fact that the density of the oil was 831 kg/m3, what was the voltage that made the droplets hover? (give your answer with 0.1 V precision)