A person is placed in a large , hollow ,metalic sphere that is insulated from ground. if a large charge is placed on the sphere, wil the person be harmed upon touching the inside of the sphere? justify your answer in details
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A person is placed in a large , hollow ,metalic sphere that is insulated from ground. if a large charge is placed on the sphere, wil the person be harmed upon touching the inside of the sphere? justify your answer in details
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- Two parallel, thin, L×L�×� conducting plates are separated by a distance d�, as shown. Let L=�=2.5 m, and d=�=2.0 mm. A charge of ++6.5μC�C is placed on one plate, and a charge of −−6.5μC�C is placed on the other plate. a) What is the magnitude of charge density on the inside surfae of each plate in Coulombs per squae meter? b) What is the magnitude of the electric field between the plates? I was able to find the charge density easily. I am not certain about the electric field.Please Asap+8.0 µC and Qc = -2.0 µC. Consider three charges, QA = +6.0 µC, QB Charge Qais placed at point A = (-4.0,0) cm, charge QB is placed distance 4.0 cm from the origin, so that the line connecting it with origin makes an angle 0 = 60° with the negative x axis and charge Qc is at the origin. y QB QA What is the magnitude and direction of the electric force exerted by charges QA and QB on charge Qc?
- Two spherical, hollow conductors are concentrically nested as shown in the cross-sectional diagram below and electrically isolated from each other. A net charge of -3 nC is divided between the conductors, with a total of -12 nC on the inner conductor and +9 nC on the outer one. The charges are, of course, free to move between the surfaces within each shell but cannot move from one shell to the other. The inner conductor has an inner radius of a=2 cm, outer radius of b=3 cm. The outer conductor has an inner radius of c=6 cm, an outer radius of d=8 cm. a (a) In equilibrium, all of the excess charge is found on the surfaces. Why is there no charge between a and b, nor between c and d? (b) Determine the net charge on each surface (ie how much charge is there at r = a, at r = b, at r = c and at r= = d). (c) Is the charge on the outer surface equal to the net charge on the outer container, the net charge of the system, or some other amount? Explain briefly. (d) Find the surface charge…= -8.3 1. A particle with charge 9₁ = +4.1 μC is located at (x=0,y=0). A second particle with charge 92 μC is located at (x=0,y=4.00 cm), and a third charge 93 = +4.8 µC is located at (x=3.00 cm,y=0). (a) In your notebook, draw a diagram of the three-charge system showing the location of the charges. (b) Calculate the potential energy of this three-charge system. -3 -8.91-10-³√ J PE =Sphere A having a net charge of +2.50E-6 C is placed on a scale, which measures its weight in Newtons. Sphere B having a net charge of –6.40E-6 C is directly positioned 9.79 m above the first sphere, and the reading of the scale is found to be zero. What is the mass of sphere A (in kg)? On the x axis, a point charge Q = +4.55E-6 C is placed at the origin x = 0.00 m. What is the electric field E at x = –5.51 m (in N/C; use positive sign if E points in the +x direction, and negative sign if E points in the –x direction)?
- Two point charges, -25 uC and -75 µC, are held fixed exactly 1.0 m apart. (a) Where should a third charge be placed so that the net force on it is zero? (b) Explain why the magni- tude and sign of the third charge do not affect your answer to part (a).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)