Answer true or false to the following statements by circling the correct answer True True True True True False False False False False Capacitors in series have an equivalent capacitance that is equal to the sum of the capacitance. Active devices are ones that require an external power supply. The energy in an inductor is always positive. Inductors in series have an equivalent inductance equal to the sum of the inductance When using the principle of superposition on a circuit containing a current source, we deactivate (or zero) the current source for this analysis by replacing circuit. it with an open

Answer true or false to the following statements by circling the correct answer True True True True True False False False False False Capacitors in series have an equivalent capacitance that is equal to the sum of the capacitance. Active devices are ones that require an external power supply. The energy in an inductor is always positive. Inductors in series have an equivalent inductance equal to the sum of the inductance When using the principle of superposition on a circuit containing a current source, we deactivate (or zero) the current source for this analysis by replacing circuit. it with an open

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter19: Capacitors

Section: Chapter Questions

Problem 2PA: You are an electrician working in an industrial plant. You discover that the problem with a certain...

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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=%=
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?
Three capacitors having values of 2.2 F, 280 F, and 470 pF are connected in parallel. What is the total capacitance?
To measure the capacitance C of a capacitor, you attach the capacitor to a battery and wait until it is fully charged. You then disconnect the capacitor from the battery and let it discharge through a resistor of resistance RR. You measure the time T1/2 that it takes the voltage across the resistor to decrease to half its initial value at the instant that the connection to the capacitor is first completed. You repeat this for several different resistors. You plot the data as T1/2 versus R and find that they lie close to a straight line that has slope 9.00 μF. What is the capacitance C of the capacitor?
Which of the following statements about inductors is correct? When an inductor and a capacitor are placed together in an ideal circuit, the current through the inductor drops to zero in one time constant. Inductors store energy by storing charge. When an inductor are placed in an ideal circuit with a resistor, the current through the resistor drops to zero in one time constant. An inductor always resists any change in the current through it.
Two capacitors A and B having capacitance of 20uF and 30uF respectively are connected in series to a 600v supply. Determine the p.d across each other. If a third capacitor C is connected in parallel with A and it is found that p.d across B is 400v, calculate the capacitance of C and energy stored in it
GENERAL RLC CIRCUITS: Solve and show your solution completely. Make sure your answers are in 4 decimals places. What capacitance must be placed in series with an inductance of 0.05 henry so that at 100 Hz,the impedance becomes equal to the ohmic resistance?
An inductor with a cross-sectional area of 6.9*10^-3m^2 and a length of 24 cm has an inductance of 7.3mH. Find the number of windings or turns in the inductor. Show the algebraic form of any equation(s) that you use.
A set of uncharged parallel plate capacitors are arranged as shown in the provided image. All the capacitors have a capacitance of 39 micro-Farads, and the battery has a votlage of 7.5V. How much charge goes past the switch after it's closed?
Basic Electrical Engineering: Inductance and Capacitance You find that a 25-µF capacitor connected to a 480 V AC is defective. The storeroom has no capacitors with a 480 V AC rating. However, you find two capacitors rated at 50 µF and 370 V AC. Can these capacitors be connected in such a manner that they can replace the defective capacitor? If yes, explain how they are connected and why the capacitors will not be damaged by the lower voltage rating. If no, explain why they cannot be used without damage to the capacitor.
Two capacitors of 200 and 800 nF, respectively are connected in parallel. The combination is then connected in series with another two capacitors of C and 600 nF connected in parallel. If the total capacitance of the set-up is 500 nF, determine the capacitance C.