Question 1 The two capacitors having their respective capacitances are connected as shown in figure from some time and obtained the voltages of V₁-8V and V2-12V. The value of the unknown capacitor (in mF) will be C₁ C₂=3mF Black Box
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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?You are an electrician working in an industrial plant. You discover that the problem with a certain machine is a defective capacitor. The capacitor is connected to a 240-volt AC circuit. The information on the capacitor reveals that it has a capacitance value of 10 mF and a voltage rating of 240 VAC. The only 10-mF AC capacitor in the storeroom is marked with a voltage rating of 350 WVDC. Can this capacitor be used to replace the defective capacitor? Explain your answer.An AC circuit contains a 24 resistor, a 15.9-mH inductor, and a 13.3F capacitor connected in parallel. The circuit is connected to a 240-V, 400-Hz power supply. Find the following values. XL=XC=IR=AIL=AIC=AP=WVARsL=VARsC=IT=AVA=PF=%=
- I have a series circuit with a source of 50V, resistor 400 ohms, capacitor Xc=120 ohms, and a 60 Hz. frequency, I'm looking to find out the Capacitance on the circuit, and the formula to solve the problem, Thanks.In the given series-parallel combination of capacitors, find the total capacitance, the total charge, the individual charges, and individual voltages. The capacitance of each capacitor is given in the diagram. The combination is connected to a power source of 100 V.Three capacitors each of the capacitance C are given. The resultant capacitance 2/3 C Can be obtained by using them ? a)Two in parallel and third in series with this combination b)All in parallel c)All in series d)Two in series and third in parallel across this combination
- Two capacitors give an equivalent capacitance of 9.00 pF when connected in parallel and an equivalent capacitance of 2.00 pF when connected in series. a.) What is the capacitance of each capacitor? b.) John was asked to design a capacitor in which small size and large capacitance were required. He said that he can achieve that by inserting a piece of paper between the plates. Do you agree with him? Why? Is there anything else that could be done to increase the capacitance?An emf source with E=100 V, a resistor with R=80 ohms, and a capacitance with C=4 uF are in series.connected. While the current is 0.9A during the loading of the capacitor, the load on the plates of the capacitor ishow big is it (in uC)?You measure the capacitanceC1of a capacitor by doing thefollowing: First connect capacitorsC1andC2in series to a power sup-ply that provides a voltageVthat can be varied. The capacitance ofC2is known to be3.00mF. Then vary the applied voltageV, and for eachvalue ofVmeasure the voltageV2acrossC2. After plotting your data asV2versusV, you find that the data fall close to a straight line that hasslope 0.650. What is the capacitanceC1?
- Derive the equivalent circuit for a parallel connection of ideal capacitors. Assume that the initial voltage across the paralleled capacitors is v(t0). (Hint: Sum the currents into the string of capacitors, recognizing that the parallel connection forces the voltage across each capacitor to be the same.)A resistor of R = 50Ω resistance is in series with a capacitor of C = 150μF. At t= 0, it is suddenly connected to a source of dc voltage of 25V. Determine the current in the circuit at any time t. Determine the current and the voltages across each element at t = 2τ.Acertain electric circuit has a resistor and a capacitor. The capacitor is initially charged to 100 V. When the power supply is detached, the capacitor voltage decays with time, as the following data table shows. Find a functional description of the capacitor voltage v as a function of time t. Plot the function and the data on the same plot.