Select the correct expression for the potential at a distance ?r from a point charge ?Q.

Q: Find the potential at the center of curvature of the (thin) wire shown in the figure below. It has a…

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Q: Given two particles with Q = 4.30-µC charges as shown in the figure below and a particle with charge…

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Q: The figure shows a thin rod with a uniform charge density of 3.60 µC/m. Evaluate the electric…

A: Given: Charge density, λ=3.60μC=3.60×10-6 C d=D=L4 Let small segment of rod be dx, Potential at that…

Q: If the potential due to a point charge is 5.40 ✕ 102 V at a distance of 15.6 m, what are the sign…

A: Given Data: The potential due to point charge is, V=5.40×102 V The distance between the charges is,…

Q: Consider two charges, QA and QB placed along a horizontal line and separated by distance a, as shown…

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Q: On a square wireframe with side length a in empty space, there is a linear charge density ρl.…

A: Let the potential is given as V Let the linear charge density is given as ρl. Let the length of the…

Q: A charge of +2 µC charge is placed at the x = 0. Find the absolute potential at a  point located at…

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Q: The graph above shows the potential V as a function of position x for a non-uniform electric field.…

A: Electric field is defined as the negative of the gradient of the electric potential. Negative of the…

Q: The electric potential in a region of uniform electric field is -1400 V at x = -1.70 m and +1100 V…

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Q: The two halves of the rod in the figure are uniformly charged to ±Q. What is the electric potential…

A: The rod is uniformly charged with two halve positive and negative charges. Since, the rod is…

Q: Two large charged plates of charge density ±30 μC/m2 face each other at a separation of 5.0 mm. (a)…

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Q: As shown in the given figures, three point-charges distribution where, Q = 19 nC, and d = 4.00 cm.…

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Q: Q4) a) In free space, a point charge of 10 nc at the origin, find the potential at p(3,4,5) if: i)…

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Q: On a square wireframe with side length a in empty space, there is a linear charge density ρl.…

A: Recall V=KQ/r considering potential due to one side and will multiply with 4 four to get total…

Q: A charge of +2 μC charge is placed at the x = 0 Find the absolute potential at a point located at x…

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Q: Three charges are placed as shown in the figure with q=9.83 µC. Determine the electric potential at…

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Q: 18. Charge of uniform density (3.5 nC/m) is distributed along the circular arc shown. Determine the…

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Q: At locations A and B in the figure, find the total electric potential due to the two-point charges.

A: Electric potential is defined as the work done by electric field to bring a unit positive charge…

Q: A potential at a distance of 3 m from a positive pint charge is 100V. What is the potential 8 m away…

A: Let a point charge = q Potential due to the point charge at a distance 3 m = 100 V Potential due to…

Q: Q4 A charge of 30nC is uniformly distributed over circular conducting disk of rad meter. Find the…

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Q: Find the potential at the center of curvature of the (thin) wire shown in the figure below. It has a…

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Q: The figure below shows a line of charge of total charge Q = 0.9 nC placed along the x axis. What is…

A: The length of the line L=40+50=90 cm=0.9 m The total charge of the line Q=0.9 nC=0.9×10-9C The…

Q: What is the electric potential in volts (realative to zero at infinity) at the origin for a charge…

A: Consider an elementary length dz along the z-axis. The charge of the elementary length is,

Q: The potential in a certain region is given by V = x^2*y+x*y^2 Find the electric force on a 6C charge…

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Q: Two positive point charges are placed at the opposite corners of a rectangle as shown in the figure.…

A: It is given that,

Q: What is the net electric potential at the center of the square if d=5.17 cm due to the particle…

A: Given Charges are fixed as shown in the figure d = 5.17 cm= 0.0517 m charge = q = 17.8 nC We have to…

Q: The potential 0.010 m from a point charge is 0.10 V. What is the magnitude of the point charge?

A: Potential, v=0.10 V Distance, r=0.010 m Let q be the point charge.

Q: An equipotentional surface that surrounds a + 3.0 uc point charge has a radius of 2.o cm. What is…

A: The electric potential at a point is defined as the work required to bring a unit charge from…

Q: What is the excess charge on a conducting sphere of radius r = 0.20 m if the potential of the sphere…

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Q: Two similar charges of 250 statC are situated on small spheres 15 cm apart. What is the electric…

A: Charge on sphere: q = 250 stat C = 250 x 3.34 x 10-10 =  8.34 x 10-8 C  Distance between two sphere:…

Q: A charged ring whith a redius of 0.3 m and a total charge of 13 nC. Find that electric potential at…

A: Recall V=KQ/r where K is constant Q is charge due to which potential at distance r is to be found.

Q: As shown in the given figures, three point-charges distribution where, Q = ab nC, and d = 4.00 cm.…

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Q: In the diagram below, particle A has a charge of 870 µc and is 2 m away from point P. Particle B has…

A: We need to find the potential energy between A and B. Also, we need to find the potential at point…

Q: A wire having a uniform linear charge density 2 is bent into the shape shown in the figure. Find the…

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Q: In the figure below given that Q =39 nC, find the electric potential in units of V at the point p.

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Q: The potential at the center of a square is 6V when a charge of +Q is located at one of the square’s…

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Q: In the figure below given that Q =42 nC, find the electric potential in units of V at the point p.…

A: Recall V=Kq/r So calculating potential due to each charge and adding them we have.

Q: Find the potential on the axis of a thin uniformly charged ring of radius Rif the charge of the ring…

A: Given: radius of ring =Rlinear density = 6 nC/mdistance on axis = 2.3 R

Q: The two parallel plates of capacitor, spaced at 1 mm apart both of them carries charges of 890 nC.…

A: Given that- Separation between the plate(d) =1mm=1*10^-3 Side Of square plate(L) =5 cm=0.05m…

Q: A 0.500 cm diameter plastic sphere, used in a staticelectricity demonstration, has a uniformly…

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Q: A 0.500 cm diameter plastic sphere, used in a static electricity demonstration, has a uniformly…

A: The potential is given by  V =k q r

Q: The thin rod in the figure is uniformly charged with a total charge of Q. Derive an expression for…

A: Answer:   Given data,

Q: Q4 A wire having a uniform linear charge density Ais bent into the shape shown in the following…

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Q: Four positive charges (+20 microC each) are to be arranged at the corners of a square of side d =…

A: Given data:  Charge (q) = +20 microC = +20×10-6 C Side (d) = 0.5 m

Dielectric Constant Of Water

Water constitutes about 70% of earth.  Some important distinguishing properties of water are high molar concentration, small dissociation constant and high dielectric constant.

Electrostatic Potential and Capacitance

An electrostatic force is a force caused by stationary electric charges /fields. The electrostatic force is caused by the transfer of electrons in conducting materials. Coulomb’s law determines the amount of force between two stationary, charged particles. The electric force is the force which acts between two stationary charges. It is also called Coulomb force.