Electrons have a charge of q = -1.602 × 10-19 C. A student observes that a Styrofoam cup has a total charge of Q = -0.98 μC. Write an expression for the number of excess electrons N in the cup.

Q: Two metal spheres, each of radius 3.2 cm, have a center-to-center separation of 3.0 m. Sphere 1 has…

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Q: Four identical metallic spheres with charges of +9.0 µC, +1.0 µC, −2.6 µC, and −7.6 µC are placed on…

A: Given data, Charges, Q1=9 μCQ2=1 μCQ3=-2.6 μCQ4=-7.6 μC

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

A: Initial charge on disk A = -8 μC Initial charge on disk B = -2 μC Initial charge on disk C = 5 μC…

Q: Two metal spheres, each of radius 4.2 cm, have a center-to-center separation of 1.6 m. Sphere 1 has…

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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: An object of mass 5 × 10-6 g is placed over a thin positively charged sheet of surface density of…

A: The mass of the object, m= 5×10-6 g = 5×10-9 kg The surface charge density of the sheet, σ=4.0×10-6…

Q: Consider an infinite line of charge, with linear charge density +22.5 x 10-12 C/m.  This line of…

A: The position vector of the point P where electric field is to be found w.r.t the line of charge 1 at…

Q: surface charge density o on the surface of the sphere?

A: Correct option is 3rd one .    Complete explanation an solution is in next step .

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: A 40-g ball of copper has a net charge of 2.5 µC. What fraction of the copper's electrons have been…

A: The mass of the ball is 40 g. The net charge of the ball is 2.5 μC. The atomic mass of the copper is…

Q: Part A What is the charge on the ball in nC? Express your answer in nanocoulombs.

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Q: (a) Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of…

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Q: (a) Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of…

A: The number of atoms in 11g of silver are           n=NAmM   Here,  NA = avgadro constant =…

Q: Two metal spheres, each of radius 4.0 cm, have a center-to-center separation of 2.9 m. Sphere 1 has…

A: Given that q1=1.4×10-8 C q2=-4.0×10-8C Radius r1=r2=4 cm Distance between the centre's of sphere…

Q: An eraser has a net charge of +2 µC. How many more protons than electrons does this eraser have?

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Q: We bring into touch three identical conductors, X, Y, and Z, with initial charges of +2q, 4q, and q,…

A: Total charge on conductors = 2q+4q+q = 7q Since 3q is near x , so charge induce on x is equal to -3q…

Q: Consider an infinite line of charge, with linear charge density +3.5 x 10-12 C/m.  This line of…

A: Applying Gauss's Law of electrostatics: Magnitude of Electric field due to a infinitely long line…

Q: Iwo metal spheres, each of radius 4.4 cm, have a center-to-center separation of 1.9 m. Sphere 1 has…

A:

Q: rom the figure below calculate the total charge due to the charge distributions labeled B (Surface…

A: Given:For surface charge distribution B,radius , r = 4 mcharge density, ρ = 5mC/m2 = 5×10−3…

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: An object has a charge of -5.00 μC. How many excess electrons does it have?

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

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Q: A 52.7 g ball of copper has a net charge of 2.2 μC. What fraction of the copper's electrons have…

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Q: You hold a ruler that has a charge on its tip 6 cm above a small piece of tissue paper to see if it…

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Q: Consider three identical metal spheres, A, B, and C. Sphere A carries a charge of -20 µC, sphere B…

A: Given, QA=-20μCQB=-16 μCQC=+86μC

Q: How many electrons would need to be assembled to obtain a total charge of q=1C ? The mass of an…

A: Answer..

Q: onsider three identical metal spheres, A, B, and C. Sphere A carries a charge of +2q. Sphere B…

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Q: Two small plastic spheres are given positive electrical charges. When they are 15.0 cm apart, the…

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

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Q: Two identical conducting spheres A and B are initially electrically neutral. Sphere A is given a…

A: In this problem, we are dealing with conducting spheres and electric charges.When two conductors…

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: Spheres A, B and C have charges +8.0 C, +12.0 C, and -5.0 C, respectively. The three spheres are…

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Q: An electrically neutral penny, of mass 3.11 g, contains an equal number of positive and negative…

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Q: Four identical metallic objects carry the following charges: +1.49, +6.33, -4.69, and -9.03 µC. The…

A: In the given question, four different charges are brought together and placed into contact. They are…

Q: esc A 20-cm-radius ball is uniformly charged to 78 nC. For help with math skills, you may want to…

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Q: Consider three identical metal spheres, A, B, and C. Sphere A carries a charge of +4q. Sphere B…

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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: A 60-g ball of copper has a net charge of 3 μC. What fraction of the copper's electrons have been…

A:

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 46.9 g ball of copper has a net charge of 2.9 uC. What fraction of the coppers electrons have been…

A:

Q: Two balloons (m = 0.022 kg) are separated by a distance of d = 12 m. They are released from rest and…

A: m=0.022 kgd=12 ma=1.1m/s2

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.