A CD disk of radius ( R = 3.0 cm ) is sprayed with a charged paint so that the charge varies continually with radial distance r from the center in the following manner: σ = − (6.0 C/m)r / R . Find the potential at a point 4 cm above the center.

Q: Two concentric rings, of radii R and 2R, lie on the y-z plane and at the origin as shown in the…

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Q: What are (a) the charge and (b) the charge density on the surface of a conducting sphere of radius…

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Q: The following point charges are placed on the x-axis: +2.0 uC at x =20 cm, 3.0 uC at x =30 cm, 4.0…

A: Given: The distance of charge q1=2 μC from x=0 is r1=20 cm. The distance of charge q2=3 μC from x=0…

Q: A 4.0 nC charge is uniformly distributed along the abscissa axis from x = + 4m to x = + 6m. Which of…

A: Given data *The given charge is q = 4.0 nC = 4.0 × 10-9 C *The charge is uniformly distributed along…

Q: In the figure a plastic rod having a uniformly distributed charge Q = -22.4 pC has been bent into a…

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Q: The three charged particles in the figure below are at the vertices of an isosceles triangle (where…

A: Potential at a point due to other three charges.

Q: A conducting cylinder of radius 3.25 cm and length 5.6cm has a total  charge of 4.5x10-9C…

A: Radius of the cylinder is R = 3.25 cm = 0.0325 m Length of the cylinder is l = 5.6 cm = 0.056 m…

Q: A plastic disk of radius R = 60.0 cm is charged with a surface charge density uniform σ = 7.00…

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Q: A glass ring of radius 5.0 cm is painted with a charged paint such that the charge density around…

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Q: Conducting spherical shell of radius b, located at the origin, has a potential V=V,b/r for r>b and…

A: Given information: Here, V is the potential outside the conducting shell, b is the radius of the…

Q: A plastic rod has been bent into a circle of radius R= 6.00 cm. It has a charge Q=+100.0 pC…

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Q: conducting sphere of radius R carries a net positive charge Q, uniformly distributed over the face…

A: electric field inside a conducting sphere is =0, as charge inside the conducting sphere is zero…

Q: Consider two positive charges located on the y-axis. let Q= 4.0μC, and a= 0.07 m. Find the electric…

A: Electric potential due to a point charge at a distance a is defined as  V=kqr Here V is potential, k…

Q: Consider an infinitely long conducting shell in the shape of a right circular cylinder with radius R…

A: Electric field E from Gauss's law:E=σR22πε0Electric potential:dV=E.drVa-Vb=Vab

Q: Consider a potential field in cylindrical coordinates and a point P in the same coordinate system.…

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Q: A plastic disk of radius R = 46.3 cm is charged on one side with a uniform surface charge density…

A: This question is based on Electrostatic potential topic. The formula for Electrostatic potential due…

Q: In Figure, a plastic rod having a uniformly distributed charge Q=-25.6 pC has been bent into a…

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Q: A charge of uniform density (76 nC/m) is distributed along the x axis from the origin to the point x…

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Q: A long cylindrical shell of 6 cm radius has a uniformly distributed charge with a density of 8.5 µC…

A: Given : R=0.06m              r=0.04m              ρ=8.5×10-9C/m   The electric potential difference…

Q: plastic rod of length L = 12.0 cm and uniform positive charge Q = 56.1 fC lying on an x axis. With V…

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Q: In the figure below, what is the net electric potential at point P due to the four particles, if V =…

A: The formula for the electric potential of a charged particle is expressed as: Use the formula for…

Q: In the Figure shown below, what is the net electric potential at the origin due to the circular arc…

A: Solution: Given: k = Coulomb's constant = 8.99 x 109 N.m2/C2  O = origin of the coordinate system Q1…

Q: What is the electrical potential at the center (point O) of a non- uniformly charged semicircular…

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Q: A plastic disco of radius R = 60.0 cm is charged with a surface charge density uniform σ = 7.00 fC /…

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Q: A charge of uniform density (59 nC/m) is distributed along the x axis from the origin to the pointx…

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Q: A rod of length L is lying on x-axis with left end at the origin and has a non-uniformly linear…

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Q: P.

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Q: A conducting cylinder of radius 3.5 cm and length 5.6 cm has a total charge of 4.5 x10 ^ -9 C…

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Q: a non-conducting hollow sphere has outer radius R and inner radius R/2 and carries a uniform volume…

A: Given: A non-conducting hollow sphere has an outer radius R and inner radius R/2 and carries a…

Q: A very thin rod carrying linear charge density A lies in the ay plane making angle 1/4 with the x…

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Q: In the figure a plastic rod having a uniformly distributed charge Q = -20.4 pC has been bent into a…

A: Introduction: Intensity of electric field can be represented with the help of scalar quantity, known…

Q: There is a non contuctive thin spherical shell with radius r=20 cm. It Carries a uniformly…

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Q: The electric potential in a certain region of space is given by V(x,y,z)=αx2y+βy2z, where α=364 V/m3…

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Q: A disk of radius  R = 8.0 cm  is sprayed with a charged paint so that the radial charge density (the…

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Q: A conducting cylinder of radius 3.25 cm and length 5.6 cm has a total charge of 4.5x10-9C…

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Q: The radius and surface charge density of a uniformly charged spherical shell are 20 cm and, 0.3…

A: we have to find the electric potential at 40 cm away from the centre and 15 cm away from the centre.…

Q: |The Electric potential on the axis of a uniformly charged ring of radius R, at a distance x from…

A: In this question we given that the Electric potential on the axis of a uniformly charged ring of…

Q: spherical conductor is known to have a radius and a total charge of 10 cm and 20uC. If points A and…

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Q: An infinitely long wire of linear charge density +3 nC/m is surrounded by a metallic shell of inner…

A: At BCM Electric field due to the linear charge long wire at a distance r is E= λ1/ 2πEor Where λ1 is…

Q: Two concentric spherical conductive shells of radii 5 cm and 10 cm are charged with 6 µC and 1 µC,…

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Q: The figure shows a rectangular array of charged particles fixed in place, with distance a = 40.2 cm…

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Q: Consider the almost complete circle of wire shown in the figure with radius r and with a uniformly…

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Q: A rod of length L is lying on x-axis with left end at the origin and has a non-uniformly linear…

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Q: The linear non-uniform charge distribution given by lamda = bx, where b is a constant, lies along…

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Q: Two concentric spherical conductive shells of radii 5 cm and 10 cm are charged with 5 µC and -3 µC,…

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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.