How much work do we have to do if we want to place two 1 µC charges at a distance of 1 cm from each other? - The force is repulsive, so we have to push them towards each other (just like lifting a mass) - If they are initially separated by a large distance, r → o then they initially have U, = 0. - In their final configuration, -

How much work do we have to do if we want to place two 1 µC charges at a distance of 1 cm from each other? - The force is repulsive, so we have to push them towards each other (just like lifting a mass) - If they are initially separated by a large distance, r → o then they initially have U, = 0. - In their final configuration, -

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Three particles lie on the x-axis: particle 1, with a charge of 1.27 μC is at 1.00 cm, particle 2, with a charge of 2.36 µC, is at x = 2.00 cm, and particle 3, with a charge of -3.41 μC, is at x = 3.00 cm. The potential energy of this arrangement, relative to the potential energy for infinite separation, is i J. Save for Later Submit Answer
Two initially uncharged parallel metallic plates, each with an area of 37 mm², are pulled apart by 2.3 mm. In order to store 56 kJ of energy in the region between the plates,the charge (in µC) that must be transferred from one plate to the other is 126 O 87 O 19 O 4 O23 Clear my choice
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The nucleus of a helium atom contains two protons that are approximately 1 fm apart. How much work must be done by an external agent to bring the two charges from an infinite separation to a separation of 1.0 fm? -230 J -2.3 x 10-13 J 2.3 x 10-13 j 2.3 x 10-16 J
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8. The system consists of two concentric metal shells of radii R1 and R2 (R2> R1) with the corresponding charges q1 and q2. Find: a) self-energy W1, W2, of each shell; b) the interaction energy of the shells Wwz; c) total electrical energy W of this system.
Given two particles with Q = 2.80-μC charges as shown in the figure below and a particle with charge q = 1.27 x 10-18 C at the origin. (Note: Assume a reference level of potential V = 0 at r = ∞o.) 9 x = -0.800 m 0 x = 0.800 m x (a) What is the net force (in N) exerted by the two 2.80-μC charges on the charge q? (Enter the magnitude.) N (b) What is the electric field (in N/C) at the origin due to the two 2.80-μC particles? (Enter the magnitude.) N/C (c) What is the electrical potential (in kV) at the origin due to the two 2.80-μC particles? kv (d) What If? What would be the change in electric potential energy (in J) of the system if the charge q were moved a distance d = 0.400 m closer to either of the 2.80-μC particles? J
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8 positive charges of +3μC are initially placed at infinite separation. Calculate the total required work to move the 8 positive charges to the 8 courners of a cube (The side length of the cube is l=1m). It should separately calculate the work required to sequentially move each charge to its final position.
Adopt a strategy of bringing in the charges one by one from infinity, and situate four electrons at the corners of a square 10.0 nm on a side. (a) Explain, using diagrams, the issue of attraction/repulsion & how the work performed in each step is affected by the sign(s) of the charge(s). (b) Calculate the total amount of work required to bring the charges to this arrangement. (c) Use U = 4TEO to determine the total potential energy of rij the system of four charges. (d) Comment on your finding in (c).(1) (e) Would your comment in (d) remain the same if, while keeping the two bottom-most charges the same, we replace the two topmost charges in the arrangement with two charges of the same magnitude, but different signs? You may use diagram(s) to illustrate your explanation.