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 4 × 2 mm flat carpet acquires a uniformly distributed charge of −10 μC after you walk across it…

A: Dimensions of carpet = Charge on carpet is Mass of dust particle is Permittivity of free space is

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: wo very small 8.20-g spheres, 20.0 cm apart from center to center, are charged by adding equal…

A:

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: The figure provided shows a metal sphere hanging by an insulating thread within a hollow conducting…

A: PositiveExplanation:The charged rod transferred positive charge to the small sphere. Therefore, the…

Q: Samson is doing a experiment. he has a 5.00 g particle. It has a charge of 5 μC.samson sees The…

A: Electrostatic.

Q: A small plastic ball of mass 6.34 × 10-3 kg and charge +0.164 μC is suspended from an insulating…

A: From equilibrium condition we can calculate the charge of each plate

Q: Question 1. Two conductive spheres have the radius R1 = 0.2 m and R2 = 0.1 m. The spheres have the…

A:

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

A:

Q: f the magnitude of an electric field in air is as great as 3.00×106 N/C, the air becomes ionized and…

A: Electric field in air,(E)=3 x 106 N/C -------(1) [Given]  Charge on a conducting sphere,(Q)=27.8…

Q: A 2.0 mm × 4.0 mm flat carpet acquires a uniformly distributed charge of −−10 μC after you and your…

A: Dimensions of carpet are Charge on carpet is Mass of dust particle is Note:Permittivity of free…

Q: A small glass bead charged to 4.5 nC is in the plane that bisects a thin, uniformly charged,…

A:

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: A small plastic ball of mass 8.19 x 103 kg and charge +0.116 μC is suspended from an insulating…

A: Mass of ball=8.19×10-3kg Charge on ball = 0.116×10-6C Area of plate =0.0128m2

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: A line of positive charge is formed into a semicircle of radius R = 25 cm, as shown in figure. The…

A: The radius of the semicircle is r= 25cm. The linear charge density distribution is given, the total…

Q: Two identical beads each have a mass m and charge q. When placed in a hemispherical bowl of radius R…

A:

Q: A large electroscope is made with "leaves" that are 78-cm-long wires with tiny 24-g spheres at the…

A:

Q: A solid metallic sphere with a radius of rA - 5.00 cm is located inside a hollowed metallic sphere…

A:

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=…

Q: A 148 mg plastic bead has a radius of 344 μm and is charged by the addition of 1.38×1010 excess…

A: The mass of the plastic bead, m=148 mg = 148×10-6 kg Number of excess electrons, n=1.38×1010

Q: A 8-g charged plastic sphere charged to 75 µC is on top of a plastic spring with spring constant k =…

A: Given: charge on plastic sphere, q1 = 75 µC = 75 × 10-6 C Spring constant, k = 400 N/m relaxed…

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

A: As per our policy, we are supposed to answer the first 3 sub-parts.

Q: An infinite line of positive charge lies along the y axis, with charge density A = 1.10 µC/m. A…

A:

Q: A conducting sphere of radius r1 = 0.21 m has a total charge of Q = 1.6 μC. A second uncharged…

A:

Q: What is the magnitude E of the electric field midway between the spheres?

A: According to Gauss law electric field outside of a sphere is same as that of a point charge.…

Q: Suppose a speck of dust in an electrostatic precipitator has 8.0000 × 10" protons in it and has a…

A:

Q: A small plastic ball of mass 5.86 x 10-3 kg and charge +0.178 μC is suspended from an insulating…

A:

Q: A small glass bead charged to 7.0 nC is in the plane that bisects a thin, uniformly charged,…

A:

Q: Students in an introductory physics lab are performing an experiment with a parallel-plate capacitor…

A: Let us consider a student in an introductory physics lab are performing an experiment with a…

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.