A variable capacitor comprises seven armatures in the form of semicircles with a radius of 2 cm (figure 5.33). The frames are 1mn apart. Find the capacitance when the angle  is: (a) zero; (b) equal to 45°; (c) equal to 135° Answer: (a) 33.4 pF (b) 25.1 pF (c) 8.35 pF Plase show steps, formulas and explanation for my own understanding

Q: A solid cylindrical conductor of radius a is coaxial with a cylindrical shell of negligible…

A: The electric field (E) in the region a<r<b can be determined by using Gauss's law as follows.

Q: A spherical capacitor consists of a spherical conducting shell of radius b and charge − Q concentric…

A:

Q: Find the equivalent capacitance in pF for the dielectric capacitor in problem 25.48 using values of…

A:

Q: Find the equivalent capacitance in pF for the dielectric capacitor of problem 25.49 using values of…

A:

Q: QUESTION 4 Find the equivalent capacitance in pF for the dielectric capacitor in problem 25.48 using…

A:

Q: ideal parallel-plate capacitor has a plate area of 62.38 cm2 and capacitance of 47.6 pF. The…

A: Given  Area of plates A = 62.38 cm2  = 62.38 × 10-4 m2   Capacitance C = 47.6 oF = 47.6 × 10-12 F

Q: What is the minimum capacitance you can achieve by connecting a 9.39 F and a 4.4 F capacitor?

A:

Q: A solid cylindrical conductor of radius 2.1 cm is coaxial with a cylindrical shell of negligible…

A: Given: inner radius a = 2.1 cm = 0.021 m outer radius b = 2.3 cm = 0.023 m length L = 74.9 m To…

Q: (a) find the capacitance of two concentric spherical shell,with a radii a and b (b)find the…

A: Potential can be expressed as, V=kqr

Q: 5.77 µF 5.4 µF a 1.47 µF с 3.91 pF 29.1 V Calculate the charge on the 5.77 µF (upper left)…

A:

Q: Based on the definition of capacitance, if a capacitor is uncharged (Q=0), then the capacitance is…

A: Capacitance:- capacitance is the ability of capacitor to store energy in the form of electric…

Q: In Fig. 1, C1 =2.46 µF, C2 =4.67 µF, and C3 =7.67 µF. The equivalent capacitance is most nearly (A)…

A:

Q: In the figure find the equivalent capacitance of the combination. Assume that C1 = 10.8 µF, C2 =…

A:

Q: A capacitor is made up of two long coaxial cylindrical conductors separated by a vaccum. If the…

A:

Q: Find the capacitance ( in units of pF) of a metallic sphere that has a radius of 19.2 cm immersed…

A:

Q: Assume that a cylindrical capacitor has diameter 5.0 cm and length 10.0 cm. Its capacitance is C =…

A: Given : d = 5 cm = 0.05 m r = d/2 = 0.05/2 = 0.025 m L = 10 cm = 0.10 m C = 2000 F Vmax = 2.9 V

Q: In the figure a potential difference of V = 80.8 V is applied across a capacitor arrangement with…

A:

Q: Capacitance Problem 19:   A coaxial cylindrical cable has an inner conductor of radius a = 0.0064 m,…

A: Please see the attached image for the solution.If there are queries or if the image is not loading,…

Q: A dielectric slab with thickness d, it is being inserted halfway into the capacitor (covering half…

A: GivenThickness d = 0.5 c m = 0.5 x 10-2 mCross-sectional area A = 34 cm2 = 34 x 10-4 m2Dielectric…

Q: A capacitor is composed of 2 plates separated by a sheet of insulating material 2mm thick and of…

A: Original capacitance with one dielectric C1=k1ε0Ad1 New capacitance with two dielectrics…

Q: A capacitor can have a capacitance of 5.0 * 10 ^ - 5 F . What potential difference is required…

A:

Q: The equivalent capacitance of the following configuration is: W = 10 cm L = 8 cm d, = 5 cm d2 = 2 cm…

A:

Q: Calculate the capacitance per square meter

A: The dielectrics are placed in the space in between. The resultant capacitance is the series…

Q: An air-filled spherical capacitor is constructed with an inner-shell radius of 7.30 cm and an…

A:

Q: Determine the capacitance of the given spherical cross section as shown in figure below with the…

A: A spherical cross section with radius R,2R, and 3R and filled with dielectric K1 between R and 2R,…

Q: 1. A capacitor is composed of 2 plates separated by a sheet of insulating material 2mm thick and of…

A:

Q: D = 1mm thick, l = 30cm side length square dielectric parallel plate capacitor in the figure has a…

A: D = 1mm thick, l = 30cm side length square dielectric parallel plate capacitor in the figure has a…

Q: Find the capacitance of the capacitor.

A:

Q: In an integrated circuit, a capacitor is formed by growing silicon dioxide layer of thickness 1 [um]…

A: In the world of integrated circuits, capacitors are crucial electronic components used for a wide…

Q: Consider two long, parallel, and oppositely charged wires with linear charge density +λ and -λ of…

A: The figure of a given problem,

Q: A long cylindrical capacitor. Q=- AL =-o 2ar, L E E-0 E-0 Q=+AL +o 2ar, L, Figure 1: 1. Two long,…

A: (b) potential difference between two cylindrical conductors with same magnitude of linear charge…

Q: The relative permittivity of a dialect is 2.25 (a). What is its permittivity? (b) What will be the…

A: (a) Permittivity is a measure of the electric polarizability of a dielectric. A material with high…

Q: Alls separated cm A spherical capacitor is formed from two conc by a vacuum. The inner sphere has…

A: Given DataThe inner radius of the inner sphere is ri = 12.5 cm.The outer radius of the outer sphere…

Q: A parallel plate capacitor has plates of area A = 8.00 x 10-2 m² separated by distance d = 2.22 x…

A:

Q: a 7.0 pF spherical capacitor consists of an inner conducting sphere of radius Rin=R and an- outer…

A: Given, Spherical capacitor which has inner radius R and outer radius is 2R

Q: The figure shows a variable "air gap" capacitor of the type used in manually tuned radios. Alternate…

A:

Q: The plates of a spherical capacitor have radii 55.4 mm and 56.7 mm. (a) Calculate the capacitance.…

A: A spherical capacitor is formed when a sphere either hollow or solid  , with radius (r1) is covered…

Q: If the capacitance per unit length of a cylindrical capacitor is 31 pF/m, what is the ratio of the…

A:

Q: A solid cylindrical conductor of radius 2.1 cm is coaxial with a cylindrical shell of negligible…

A: Consider a gaussian surface of radius r where r is in between the two coaxial conductors  Thus…

Q: A parallel-plate capacitor whose plates have area of 30 cm2 and 5 mm apart contains a medium with…

A:

Q: A solid cylindrical conductor of radius 2.1 cm is coaxial with a cylindrical shell of negligible…

A:

Q: alculate the capacitance (in F) if the space between the plates is filled with air. the capacitance…

A: a) We know that the formula of the capacitance if the space between the plate is filled with air is…

Q: A parallel plate capacitor filled with teflon (? = 2.1) has a capacitance of 6.5 A????1F. (A) If…

A: Given: A parallel plate capacitor filled with Teflon = 2.1 Capacitance = 6.5 A Area =3.1 m2 Formula…

Q: 3: (a) Given C1=2.0µF, Cz=4.0µF, C3=6.0µF and C-8.0µF (i) Find equivalent capacitance. (ii) How much…

A: Given data: The capacitors are, C1=2 μFC2=4 μFC3=6 μFC4=8 μF

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.