A spherical capacitor is filled with two dielectrics, as shown in the figure. Calculate the capacitance of the device.
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A spherical capacitor is filled with two dielectrics, as shown in the figure. Calculate the capacitance of the device.
You must make a graph that represents the situation of the exercise
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- Three capacitors having capacitance values of 20F,40F, and 50F are connected in parallel to a 60 - Hz power line. An ammeter indicates a circuit current of 8.6 amperes. How much current is flowing through the 40F capacitor?4. In what form is the energy of a capacitor stored?The figure shows a circuit containing an electromotive force, a capacitor with a capacitance of C farads (F), and a resistor with a resistance of R ohms (Ω). The voltage drop across the capacitor is Q/C, where Q is the charge (in coulombs, C), so in this case Kirchhoff’s Law gives
- The charges of the 2C, C, 2C capacitance capacitors in the figure are qk, qi and qm, respectively. Accordingly, what kind of relationship is there between qk, qi and qm?A 220 microfarad capacitor has an initial charged of 800 microcoulomb. It is discharged through a 100-Ω resistor. How long will it take in order for a capacitor to discharge to 100 microcoulomb? 150 microcoulomb? 200 microcoulomb? Make a graphical representation of equivalent charge vs time t, then interpret the graph. A parallel-plate capacitor has a plate separation d and plate area A. An uncharged metallic slabof thickness t is inserted midway between the plates. Determine the:a. Find the capacitance of the device.b. Show that the capacitance is unaffected if the metallic slab is infinitesimally thin.
- A small capacitor of 100 pF is charged by a steady current of 1 µA for 1 ms. At that time, the charging circuit is disconnected. a) What is the voltage across the capacitor when the charging finishes? b) A 10 MΩ resistor is connected across the capacitor to discharge it. Sketch a graph of the voltage V across the resistor as a function of time, with appropriate numbers and units marked on the axes.Determine the net capacitance C of capacitor network shown in figure when the capacitances are C_{1} = 15muF , C_{2} = 4muF and C_{3} = 7muF . When a 15 V potential difference is maintained across the combination, find the charge and the voltage across each capacitor.11. The problem is all about Capacitors and Inductors. Please provide FREE BODY DIAGRAM in the Solution.
- At time t1 a capacitance C is charged to a voltage of V1. Then, the capacitance discharges through a resistance R. Write an expression for the voltage across the capacitance as a function of time for t> t 1 in terms of R, C, V1 and t1.A charge Q is placed on a capacitor of capacitance C. The capacitor is connected into the circuit shown, with an open switch, a resistor, and an initially uncharged capacitor of capacitance 3C. The switch is then closed, and the circuit comes to equilibrium. In terms of Q and C, find (a) the final potential difference between the plates of each capacitor, (b) the charge on each capacitor, and (c) the final energy stored in each capacitor. (d) Find the internal energy appearing in the resistor.Determine the equivalent capacitance of each of the circuits in the figure shown. Note: I leave the image of the exercises in Spanish, but it is easy to understand. Also in the other image is the correct final answer, for checking.