A 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 2 b) the potential difference between the plates; V c) the electric field between the plates; N/C
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- 8The Figure shows cross sections of equipotential surfaces between two charged conductors shown in solid black. Points on the equipotential surfaces near the conductors are labeled A, B, C, D, E, F, G, H, I. What is the magnitude of the electric potential difference between points A and H? How much work is required to move a +6.0 µC point charge from B to A?y R The figure above represents a thin, circular ring of radius R= 5.8 m. The ring has a uniformly distributed charge Q=3.4 pC and point P is x = 14.8 m away from the center of the ring. (k = 9x10° V -m -c-1,p = 10-0) a) Calculate the electric potential value at point P and express your answer in SI units. Vp= V b) Calculate the electric field at point P. Ep=
- Problem 5 Consider a parallel-plate capacitor with a plate area of A = 8.50 cm². The separation between the plates is d₂ = 3.00 mm (the space between the plates is filled with air). The plates of the capacitor are charged by a 6.00 V battery, i.e., the potential difference between the plates is V₂ = 6.00 V. The plates are then disconnected from the battery and pulled apart (without discharge) to a sepa- ration of df = 8.00 mm. In the following, neglecting any fringing effects. (a) Will the new potential difference between the plates be larger, smaller, or the same compared to the initial potential difference of V₂ = 6.00 V? Explain. (Hint: Note that the charge will not change when the plates are pulled apart. Why is that?) (b) Find the potential difference Vf between the plates after the plates have been pulled to their new, larger separation df. (c) Find the electrostatic energy stored in the capacitor before and after the plates are pulled apart. (d) To separate the plates, you will…For the machine element shown, locate the y coordinate of the center of gravity.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
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