5 g dust particle has a charge of 7 ?C and is suspended between two oppositely charged parallel plates as shown below. The distance between the particle & the edges of the plates is much greater than the distance between the plates. Each plate has the same constant uniform charge density. (note: Top plate is negative and bottom is positive) Find the voltage between the plates.
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A 5 g dust particle has a charge of 7 ?C and is suspended between two oppositely charged parallel plates as shown below. The distance between the particle & the edges of the plates is much greater than the distance between the plates. Each plate has the same constant uniform charge density. (note: Top plate is negative and bottom is positive)
Find the voltage between the plates.
V=
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- The figure below shows four small spheres, each with a positive charge, at the corners of a square. The length of each side of the square is a. The sphere at top-right has a charge of q; the one at lower-left has a charge of 7.0g, the other two each have a charge of 2.5g. (Assume that the +x-axis is to the right and the +y-axis is up along the page.) 2.59 7.0g 2.5g (a) What is the magnitude of the force on the sphere with charge q? Express your answer in terms of ke. q, and a in symbolic form. F = (b) What is the direction of the force on the sphere with charge q? (Enter your answer in degrees counterclockwise from the +x-axis.) 1 counterclockwise from the +x-axisThree charges are placed in the x-y plane. Two charges of 2 nC and 1.5 nC are placed at the points (3,0) and (0,4) respectively. The distances are designated in meters. The constant Ke= 9 x 10^9. Find: 1. The x component of the force on a charge of -4.6 nC placed at (0,0). Please give the value with sign in units of nJ. 2. The y component of the force on a charge of -4.6 nC placed at (0,0). Please give the value with sign in units of nJ. 3. The x component of the Electric field on the same charge from 1 and 2. 4. The y component of the electric field on the same charge from 1 and 2.The figure below shows four small beads, each with a positive charge, at the corners of a square. The length of each side of the square is a. The bead at top-right has a charge of q; the one at lower-left has a charge of 8.0q; the other two each have a charge of 6.0g. (Assume that the +x-axis is to the right and the +y-axis is up along the page.) a 6.09 а 8.0g 6.0g a (a) What is the magnitude of the force on the bead with charge q? Express your answer in terms of k, q, and a in symbolic form. ka [12.485] F = a? What is the magnitude of the force due to each charge? (Be careful with distances.) What is the direction of each force? Using trigonometry, can you find the x- and y-components of each force? After finding the x- and y-components of the net force, how can you use them to find the magnitude of the net force? (b) What is the direction of the force on the bead with charge q? (Enter your answer in degrees counterclockwise from the +x-axis.) 45 ° counterclockwise from the +x-axis