You have a summer job in the Exploratorium in San Francisco. Your team has been tasked to make an exhibit where a small charged pith ball is levitated above a large charged plate with a small circular opening in the middle. The pith ball is to be suspended about 5 cm above the center of the circular opening. After sufficient testing, you know that the plate could be roughly uniformly charged with 2.5 µC/m?. You measure 9.6 cm for the diameter of the circular opening and 0.20 grams for the mass of the pith ball. Find what the charge on the pith ball should be.

Q: A metal sphere is uncharged (neutral). Then it is charged with +470x10-6C (470µC). Have electrons…

A: Quantization of charge.- total charge on any object is quantized.

Q: Particles in a Gold Ring. You have a pure (24-karat) gold ring with mass 17.7 g. Gold has an atomic…

A: the charge of an electrons is - 1.6 x 10-19 C  the charge on a proton is 1.6 x 10-19 C

Q: Shown below is a small sphere of mass 0.25 g that carries charge of 0.90 nC. The sphere is attached…

A: Given that: Mass of small sphere = 0.25 g charge = 0.9 nC Lengh of silk string = 5 cm Surface charge…

Q: Dry air is generally a good insulator. It’s insulating ability breaks down when the electric field…

A: Given the electric field produced by Van de Graff generator at a distance, d is 3 × 106 NC-1. The…

Q: There are two charges in the xy plane and no other nearby charges. There is a 9 millicoulomb charge…

A: Q1 = 9×10-³ C  Q2 = 8×10-³ C  x = 21 m  y = 35 m

Q: An infinite line of positive charge lies along the y axis, with charge density λ = 1.90 μC/m. A…

A:

Q: Two uncharged spheres are separated by 1.80 m. If 2.50 ✕ 1012 electrons are removed from one sphere…

A: Given data: Number of electrons (n) = 2.50 × 1012 Distance between spheres (r) = 1.80 m Required:…

Q: Problem 5: A thin rod of length L = 1.9 m lies along the positive y-axis with one end at the origin.…

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Q: Four identical metallic spheres with charges of +1.4 μC, +1.8 μC, -5.8 μC, and -5.2 μC are placed on…

A: We know from concept of distribution of charge When two charged objects get into contact, charge is…

Q: There are 4 conducting spheres all identical material and surface area. Sphere B has an initial…

A:

Q: Two conducting spheres are separated by a distance large compared to their diameters. Sphere 1 has…

A: The total charge in the system is Qtotal = 2.5+0 = 2.5 C When the two spheres are connected by a…

Q: A point charge, Q1 = -4.2 μC, is located at the origin. A rod of length L = 0.35 m is located along…

A: Since you have uploaded a question with multiple sub-parts, we will solve the first three sub-parts…

Q: 11. A circular plate has a radius of 9 cm and a total charge of 25 µC. A dust particle of charge 5…

A:

Q: An infinite line of positive charge lies along the y axis, with charge density = 1.30 μC/m. A dipole…

A: Given : Charge density (λ) = 1.30 μC/m =1.30×10-6  C/m Position of dipole at x = 22 cm = 0.22 m…

Q: An infinite line of positive charge lies along the y axis, with charge density λ = 2.00 μC/m. A…

A: The figure of this problem can be drawn as follows: Here along Y axis the infinite line charge is…

Q: A 50.0-g ball of copper has a net charge of 2.00 μC . What fraction of the copper’s electrons has…

A: To find the number of electrons removed , find the the number of electrons present in the copper…

Q: Two large rectangular sheets of charge of side L = 2.0 m are separated by a distance d = 0.065 m.…

A:

Q: In the future people will only enjoy one sport: Electrodisc. In this sport you gain points when you…

A: qA = −8.0 µC,  qB = −2.0 µC,  qC = +5.0 µC, and  qD = +12.0 µC.

Q: A charge of 5 pC is at the origin. What is the magnitude and direction of the electric field on the…

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Q: Three-point charges are in an x-y plane. Charge 1 has a charge of 11.2 mC, charge 2 has a charge of…

A: In this question we have to find the forces acting on the individual charges. Please give positive…

Q: Four identical metallic spheres with charges of +8.6 μC, +3.4 μC, -7.4 μC, and -2.8 μC are placed on…

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Q: Two identical metal spheres A and B are connected by a plastic rod. Both are initially neutral. 1.0…

A:

Q: Three identical conducting spheres are each placed 1.5cm apart. Sphere A is given a charge of…

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for…

Q: Two parallel plates of charge (+) and (-) are placed with a distance of d = 5 mm (see picture). The…

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Q: Four identical metallic spheres with charges of +9.0 µC, +2.6 µC, -3.4 µC, and -7.2 µC are placed on…

A:

Q: Problem 4: Ametal sphere of radius 0.19 m carries an electric charge of+0.41 µC, which is spread…

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Q: Two identical balloons are inflated and charged in the same manner. They are tied by threads and…

A: The electrostatic force between the two charges q1 and q2 separated by a distance r…

Q: A metal sphere has a charge of + 8.0 µC. (a.) How many electrons does it have? (b.) What is the net…

A:

Q: Two spherical conductors are separated by a distance much larger than either of their radii. Sphere…

A: Given data: Radius of the sphere A (r1) = 26.5 cm Net charge = -68.3 nC Radius of sphere B (r2) =…

Q: Four charges are placed on the corners of a square of side 2.0 m as shown. The four charges charges…

A:

Q: A 3.0-mm-diameter copper ball is charged to 90  nC. What fraction of its electrons have been…

A: Avogadro's number is one way of add together atoms or molecules in unit of moles. This is used in…

Q: Problem 2: Space explorers discover an mA = 8.7 x 10¹7 kg asteroid that happens to have a positive…

A: Space explorers discover an 8.7 × 10^17 kg asteroid that happens to have a positive charge of 4400…

Q: A 2.0-mm-diameter copper ball is charged to +50 nC. What fraction of its electrons have been…

A: Given Diameter = 2.0 mm Charge    = +50 nC Density    = 8900 kg/m3

Q: A 0.10 g honeybee acquires a charge of 20 pC while flying. The electric field near the surface of…

A:

Q: A small glass bead with a charge of +82 nC is affixed to an insulating string. The other end of the…

A: Given data The charge is q=82 nC The force is F=220 N   The force on the charge is, F=qE220…

Q: An infinite line of positive charge lies along the y axis, with charge density λ=1.30 μC/m. A dipole…

A: GIVEN: linear charge density λ =1.3μc/m position of dipole center x=22cm magnitude of charges q=…

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.