A thin plastic rod of length 2.8 m is rubbed all over with wool, and acquires a charge of 80 nC, distributed uniformly over its surface. Calculate the magnitude of the electric field due to the rod at a location 13 cm from the midpoint of the rod. Do the calculation two ways, first using the exact formula for a rod of any length, and second using the approximate formula for a long rod.

Q: In the quark model of fundamental particles, a proton is composed of three-point particles called…

A: Given,

Q: ↑ In the figure above, 0 = 25 degrees. A plastic rod is bent into a circular shape spanning 130…

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Q: Two spherical shells have a common center. A-1.50 x 106 C charge is spread uniformly over the inner…

A: 1. E ≈ 1.12 × 10^4 N/C (outwards) 2. E ≈ 4.50 × 10^3 N/C (inwards) 3. E = 0 N/C

Q: Shown below is a small sphere of mass 0.23 g that carries a charge of 9.0 x 10-10 C. The sphere is…

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Q: A piece of plastic oriented along the x axis with a length of 12.3 cm has a charge of 1.2 µC/m…

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Q: (a) Figure (a) shows a nonconducting rod of length L-5.10 cm and uniform linear charge density A -…

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Q: Two particles, each with a charge of magnitude 12.5 nC, are at two of the vertices of an equilateral…

A: Given values, Magnitude of charges = 12.5nC  side length of triangle = 2m  In this question we use…

Q: Charge q11.50 nC is at x1 = 0 and charge q 2= 3.50 nC is at x2 = 4.50 m. At what point between the…

A: GivenAs per the question And we have Given the position of charge 1 is And that of second charge is…

Q: A very long uniform line of charge has charge per unit length -2.50 nC/m and lies along the x-axis.…

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Q: Four thin spherical shells with radii R₁ = 3.00 cm, R₂ = 5.00 cm, R3 = 7.00 cm, and R4 = 9.00 cm are…

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Q: What is the magnitude of a point charge in coulombs whose electric field 55 cm away has the…

A: Given:  Electric field of point charge E= 1.7 N/C the point charge is away about r= 55 cm= 0.55 m…

Q: PREVI Two small metallic spheres, each with a mass of m 9.00 g, are suspended from a common point by…

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Q: A hollow conducting sphere has an inner radius of r1 = 1.5 cm and an outer radius of r2 = 3.5 cm.…

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Q: Problem 2: A point mass of charge q> 0 moves at 35° to a uniform electric field E for a total…

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Q: 6.30 nC of charge is uniformly distributed along a thin rod of length L = 7.00 cm, which is then…

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Q: hollow sphere has an unknown charges distributed uniformly over its surface. At a distance of 0.63 m…

A: Given  Electric field E = 4.56 × 103 N/C  Distance r = 0.63 m

Q: A non-conducting sphere of radius R= 17.3cm carries a charge Q= -18.1mC distributed uniformly…

A: Radius of non conducting sphere R = 17.3 cm  Find distance at which electric field reach a value…

Q: The electric field in a certain region of Earth's atmosphere is directed vertically down. At an…

A: Given, The electric field in a certain region of Earth's atmosphere is directed vertically down. At…

Q: A  rod  26 cm  long  is  uniformly  charged  and has  a  total charge of  - 20 uC. Determine the…

A: Given,

Q: Consider a square of side r = 4.70 cm with two q = +9.70 μC charges at adjacent corners of the…

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Q: Three charges reside on the vertices of an equilateral triangle with 25.0-cm sides, as shown.…

A: Charges; qa=1.5 nC qb=10 μC qc=-5 μC Side length of the equilateral triangle (a)=25 cm Coulomb's…

Q: A small Styrofoam ball weighing 0.0500 N is supported by a thread in horizontal electric field of…

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Q: (a) A small amber bead with a mass of 14.4 g and a charge of -0.746 µC is suspended in equilibrium…

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Q: The two spherical shell has a charge of q1=0.30nC and q2 = 0.5nC. The radius of r1=7.5cm and r2 =…

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Q: A 0.00290 kg air-inflated balloon is given an excess negative charge q1 = -3.25 x 10¬° C by rubbing…

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Q: Two conductive spheres with radii of 0.94 m and 0.47 m are connected to each other by a conductive…

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Q: What is the percent difference between the electric field produced by the finite disk and by an…

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Q: In the figure a small, nonconducting ball of mass m = 1.1 mg and charge q = 2.0 x 108 C (distributed…

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Q: A non-conducting pith ball is suspended on a 30.0-cm long cord. A horizontally oriented, uniform…

A: Given : Mass of pith ball = 5.00 g             Charge (q) =1.00 μC

Q: A small sphere is electrically neutral before 2.4 x 1011 electrons are added to it. At a distance of…

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Q: Positive charge Q = 7.8 n C  is spread uniformly along a thin insulating rod of length L = 14.5 cm.…

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Q: The edge of a cube is 1.0 m. An electric field acting on the cube from the outside has a constant…

A: As the electric field has constant magnitude and direction, the electric field will enter along one…

Q: (a) A ball is attached to a thread of length L = 24.2 cm and suspended from the ceiling, as shown in…

A:

Q: The magnitude of the electric field is 75 N/C at a distance of 64 cm from a point charge. What is…

A: Given data:  Electric field (E) = 75 N/C Distance (r) = 64 cm = 0.64 m Required: The magnitude of…

Q: A plastic rod 1.4 m long is rubbed all over with wool, and acquires a charge of -5e-08 coulombs. We…

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Q: The cockroach Periplaneta americana can detect a static electric field of magnitude 6.00 kN/C using…

A: Given:- The magnitude of the electric field is E=6×103 N/C. The electric force is F = 5.50 μN Find:-…

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.