1. Instead of using two parallel plates, we decide to construct a capacitor from two concentric, conducting spherical shells, as shown in the figure on the right. The inner shell has radius a and charge +Q, and the outer shell has radius b and carries charge -Q. What is the capacitance of this device? [Hint: Compute the difference in voltage between the inner and outer shells by integrating the electric field between the shells in the radial direction.]

Q: 3. The region between two concentric spherical shell is filled two dielectrics (E,2 = 3€,1) as shown…

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Q: Determine the amount of charge stored on either plate of a capacitor (4x10-6 F) when connected…

A: Part (1): Given: The capacitance of the capacitor is 4x10-6 F. The potential difference is 12 V.

Q: Where a 2.7 V battery is connected to a network of capacitors with C1 = 54 F, C2 = 63 F, and C3 = 45…

A: Write given values of this problem.   C1=54 FC2=63 FC3=45 Fε=2.7 V

Q: 5. Determine the equivalent capacitance for the group of capacitors in the drawing. Let all…

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Q: 14. A point charge (Q) is located in a hollow ca- vity which is inside of a conductor; we note that…

A: If Q is positive then Va and Vb are positive.As b is at larger distance so  Va > VbIf Q is…

Q: 5. Find the value of a single capacitor to replace the three (3) capacitors in the diagram. C₁ = C₂…

A: Given Potential difference V = 12 V Capacitance of all Capacitors C1 = C2 = C3 = 12uF = 1.2×10-5 F

Q: A 7.7 μF capacitor is charged by a 150 V battery (see the figure (Figure 1) a) and then is…

A: Given: Capacitor,C1=7.7 μF=7.7×10-6 FPotential, V = 150 VFinal voltage in each capacitor, V = 25V…

Q: A calculator is set on top of a book and the book is then pushed so that it slowly accelerates…

A: Given  person is pushing the book without touching the  calculator and book is accelerating with…

Q: A parallel-plate capacitor has a plate separation of 11.00 mm. 1) If the material between the plates…

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Q: 1. The plates of an empty parallel-plate capacitor of capacitance 5.5 pF are 2 mm apart. What is the…

A: Given Data :Capacitance of capacitor C = 5.5 pF = 5.5×10-12 Fdistance between plates of capacitor d…

Q: Exam in Progress An air-filled capacitor (C = 300.0 pF) consists of two circular plates of radius…

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Q: 4. Two concentric spherical conducting spheres of radius a and b make a capac- itor. Assuming that…

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Q: The plates of a parallel-plate capacitor are 3.22 mm apart, and each has an area of 9.92 cm². Each…

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Q: A small object with a mass of 4.92 mg carries a charge of 33.4 nC and is suspended by a thread…

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Q: Equipotential surfaces are to be drawn 130 V apart near a very large uniformly charged metal plate…

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Q: Plot E, V through the capacitor, o

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Q: What total energy stored in the capacitors in the figure below (c, = 0.623 µF, c, = 22.7 µF) if 1.80…

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Q: 10. In the Figure →→-→→→→→→→→→ (a) What is the charge on the 3 µF capacitor? (b) What is the charge…

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Q: The two metal objects in Figure 1 have net charges of + 70 pC and - 70 pC, resulting in a potential…

A: We can solve this problem using the relationship between capacitance, charge, and potential…

Q: Two parallel plates, each having area A = 3085cm2 are connected to the terminals of a battery of…

A: Capacitor: In an electric field, a capacitor is a device that stores electrical energy. It has two…

Q: 1. The plates of an empty parallel-plate capacitor of capacitance 5.5 pF are 2.3 mm apart. What is…

A: Given C=5.5pF=5.5×10-12F (capacitance of capacitor) d=2.3mm=2.3×10-3 m (distance between the plates)…

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.