In each case, use the trajectory of the moving particle to determine the sign of its charge, if any. (a) ---Select--- -Select- positive negative neutral X X X (b) ---Select--- X X (b) ---Select--- (b) ---Select---
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- 1. In the Bohr model of the hydrogen atom, the electron is in orbit about the nuclear proton at a radius of 5.29x 10 m. Determine the (ii) electrostatic force of attraction between the electron and proton Speed of the electron, assuming the orbit to be circular.Consider the following load distribution: "A thin wire of Length L has a charge Q evenly distributed over its entire length."Using Coulomb's Law to find the electric field associated with this charge distribution, "at points on a perpendicular straight line passing through the midpoint of the distribution"; a) Find the equation that describes the movement of an abandoned electron at any point on that straight line.3.) The charge in the figure on the x-axis is moved gradually from x = 0 to x = 5m. At what value of x will the electrostatic force on this charge be a maximum? And a minimum? What is the maximum force? What is the minimum electrostatic force? (Be sure to draw FBDs (need multiple pictures) as you are dealing with forces) 17cm 17cm 3.2E-19C X 6.4E-19C 3.2E-19C
- 5.An oil drop of mass 8.2 x 10-15 kg is suspended in an electric field of 1.0 x 105 N/C [down]. a) Draw a free-body diagram of the oil drop (1 mark) b) Calculate the charge of the oil drop (2 marks) b) Calculate the number of excess electrons on the oil drop (1 mark)Q1) Consider the voltage in the point (0.6, 0.35, 0.1), which is on the boundary between a metallic wire and air, is defined by 50 cos(20y) sinh(10x) Volts; Caclaulte: A) The electric field intensity everywhere. B) The streamline equation. c) The surface charge density at that point.
- A particle of mass m and charge q is dropped from the height of h towards a point charge Q, which lies on the ground. What is the minimum distance between the charges? Your should be in terms of m, q, Q, h, g) Hint: Using conservation of energy will make your life easier!1) charges are located at three of the corners of a square, via diagram. The sides are 1 meter. A) Find the magnitude and direction of the electric field at the center of the square. B) How much energy does it take to move charge of -7 microcoulomb from infinitely far away to center of the square? C) The -7 microcoulomb is initially at rest. it moves from center of the square to towards the top left corner. How fast will the charge be moving when it reaches the top left corner? Assume that the -7 microcoulomb charge has a mass of 8 grams. (the picture is the diagram of the square, I would appreciate any kind of help, thanks!!!).1) A charge of 0.008 coulombs is placed at each corner of a square 100 meters on a side. The direction of the force on any of the four charges will be outward along the line passing through the center of the square and the charge being considered. What will be the magnitude of the force on each charge? (Express your answer without decimal places. Round your numbers.