How much charge can be placed on a capacitor with air between the plates before it breaks down if the area of each plate is 6.00 cm2? Find the maximum charge if bakelite is used between the plates instead of air.
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How much charge can be placed on a capacitor with air between the plates before it breaks down if the area of each plate is 6.00 cm2?
Find the maximum charge if bakelite is used between the plates instead of air.
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- If the magnitude of the electric field in air exceeds roughly 3 x 106 N/C, the air breaks down and a spark forms. For a two-disk capacitor of radius 50 cm with a gap of 3 mm, what is the maximum charge (plus and minus) that can be placed on the disks without a spark forming (which would permit charge to flow from one disk to the other)? The constant €o = 8.85 x 10-12 c²/(N•m²). Additional Materials еВookA 500 pF parallel-plate capacitor has +40 nC charges on its plates. The plates are separated by 0.4 mm. Find: a) the area of each plate; cm? b) the potential difference between the plates; V c) the electric field between the plates; N/CConsider a cylindrical condenser where between the concentric surfaces a dielectric with relative permittivity epsilon_r = (r/a)^2. The inner surface has radius a = 2.3 cm, the surfaces exterior has radius b = 8.1 cm and length L =6.4cm. The surface interior has charge q = 2.7 x 10^(-3) C and the exterior surface is connected the land. Calculate the potential difference between the condenser surfaces in SI units?
- (a) How much charge can be placed on a capacitor with air between the plates before it breaks down if the area of each plate is 6.00 cm²? nC (b) Find the maximum charge if paper is used between the plates instead of air. nCProblem 13: Each plate of a parallel-plate capacitor has an area of A = 0.61 m2. The plate separation is 3.0 mm, and one of these plates is shown in the figure. It carries a charge of Q = 2.9 μC, which is concentrated on its inner surface. Imagine a cylindrical Gaussian surface, of radius r = 0.012 m, whose axis is perpendicular to the plates. One end of the cylinder is inside the plate shown and the other end is located between the plates. Both ends are parallel to the plates. Part (a) What is the flux through surface 1 Φ1, in newton meters squared per coulomb? Part (b) What is the flux through surface 2 (the outside of the cylinder not including the ends), in newton meters squared per coulomb? Part (c) What is the flux through surface 3 Φ3, in newton meters squared per coulomb? Part (d) Using all of your results, input an expression for the field within the capacitor E, in terms of the quantities given in the problem.Show transcribed image text An electric field is given by Ex = 3.5x^3 kN/C. Find the potential difference between the points on the x axis at x = 1 m and x = 4 m. kV Find the maximum surface charge density sigma max that can exist on the surface of any conductor before dielectric breakdown of a gas with a dielectric strength of 3.95 MV/m occurs. C/m^2
- Question 17 ( The effective area of each plate of a parallel plate capacitor is 2.1 m2. The capacitor is filled with neoprene rubber (k = 6.4). When a 6.0-V potential difference exists across the plates of the capacitor, the capacitor stores 4.0 µC of charge. a) What is the capacitance of the capacitor? (-. b) Determine the plate separation of the capacitor.(For a point charge, the equipotential surfaces form concentric spheres with the charges at the center. 2 such equipotential surfaces have potentials 293.3V and 95.2V. if these 2 concentric surfaces are separated by a distance of 2.2m, what is the charge of the point particle?