A spherical capacitor contains a charge q when connected to a potential difference V. Its plates are separated by vacuum and the outer radius of the inner shell is r.  What is the inner radius of the outer shell?  Answer in terms of k instead of 1/4πϵ01/4πϵ0.

Q: Two 2.2-cm-diameter-disks spaced 1.7 mm apart form a parallel-plate capacitor. The electric field…

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Q: A parallel plate capacitor of capacitance Co has plates of area A with separation d between them.…

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Q: A capacitors has 1 x 10^-10 Farads. The capacitor has parallel plates with a vacuum in between the…

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A: Surface charge density on disc σ = charge/area     =- Q2 /πR22

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Q: A spherical conductor has a radius of 12 cm and a charge of 6 uC. The electric potential (in kV) at…

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Q: A conductive spherical shell with inner radius a and outer radius b has a point charge Q in your…

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Q: Two spheres surfaces have radii a= 3 cm (inner), and b= 6 cm (external). The dielectric has relative…

A: a. Capacitance is, C=4πκε0abb-a=4π108.854×10-12 F/m0.03 m0.06 m0.06 m-0.03 m=6.68×10-11 F

Q: A total electric charge of Q = -4 x 10-º c is distributed uniformly inside the volume of a non…

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Q: A ring of radius R = 9 cm lies in the y-z plane and is centered at the origin. The ring carries a…

A: Given:  R = 9 cm Q = 61 μC

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Q: An air-filled parallel-plate capacitor has plates of area 2.40 cm² separated by 2.60 mm. The…

A: The area of the plates: The separation between the plates: The voltage of the battery:

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Q: Question 1: An insulated solid sphere of radius R has a uniform charge density A. Compute the…

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Q: Oppositely charged capacitor plates are separated by a distance of d = 5.25 mm. A potential…

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Q: An electron enters a parallel plate capacitor through a small hole in the center of positive plate…

A: We will use the electric field formula for parallel plate capacitors,

Q: The electric field strength between two parallel conducting plates separated by 4.25 cm is 7.6 × 104…

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Q: A solid conducting sphere of radius ra is placed concentrically inside a conducting spherical shell…

A: page1

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Q: Given that the electric potential ( in units of volts) in a region in space is given as V(x,y,z) =…

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Q: If this capacitor is charged using a 6.00 V battery, what electric field will be measured at the…

A: The capacitance is, C=2πε0Llnr2r1    =2π8.85×10-120.125ln0.006850.00285      =7.93×10-12 F

Q: Consider a spherical capacitor whose inner plate is a metal sphere of radius a and a spherical metal…

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Q: A parallel plate capacitor has a plate separation d = 10−5 m and plate area A = 3 cm2 . a) If the…

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Q: What is the capacitance of this cylindrical capacitor? Give your answer in picofarads. (pico =…

A: Given : Radius of cylinder (Ra ) = 0.285 cm  Radius of metallic shell ( Rb ) = 0.685 cm  Length of…

Q: 1- The region between the conductors of the cylindrical capacitor with inner conductor radius a=1cm…

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Q: A parallel-plate capacitor contains between the plates a dielectric made of Teflon (K = 2.1). The…

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A: Write the formula for the capacitance of a capacitor.

Q: A spherical capacitor is formed from two concentric spherical conducting shells separated by vacuum.…

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A: Given data, Charge Q=4.5 nC = 4.5×10-9 C. Radius of sphere R=26 cm = 26×10-2 m.

Q: Consider a parallel-plate capacitor with plate separation d, plate area A, whose plates have charge…

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Q: Two parallel plates have equal and opposite charges. When the space between the plates is evacuated,…

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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.