If the current i(t) = 6t A/s flows through a 9 H inductor, find the current flowing and the energy stored at t = 2 s. Current = A Energy = J
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- You are a journeyman electrician working in an industrial plant. Your task is to connect an inductor to a 480-V, 60-Hz line. To determine the proper conductor and fuse size for this installation, you need to know the amount of current the inductor will draw from the line. The nameplate on the inductor indicates that it has an inductance of 0.1 H. An ohmmeter reveals that it has a wire resistance of 10 . How much current should this inductor draw when connected to the line?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=%=A capacitor uses air as a dielectric and has a capacitance of 3 F. A dielectric material is inserted between the plates without changing the spacing, and the capacitance becomes 15 F. What is the dielectric constant of this material?In the circuit below, Find the voltage across the inductor at time t = 0.000909 s. The values are V1 = 146V, R = 4.4 ohms, L =0.02 henries
- P:16) Given the current across the inductor @ t= 3s is 0.875 A. What is the voltage across the 3 ohm resistor? Assume that the switch is open.The given circuit has Vth=30V and Rth=30K Ohms. If the inductor will be short circuit and the switch will be closed, what will be the current i (in mA)?The current in a 20 mH inductor has the waveform shown in Figure Q1(c). Draw the waveform for the inductor voltage. i(t) (mA) 20 – 2 t (ms) Figure Q1(c)
- in the image below, Please find the voltage across the resistor at time t = 0.00069 seconds. The energy stored in the capacitor and inductor at t=0 is 0 Joules. The values are I1 = 75 A, R = 0.059 ohms, L = 0.01 Henries, C = 0.04 Farads.An electric circuit contains an 8 ohm resistor in series with an inductor of 0.50 henries and a battery of E volts. At t=0 the current is zero. Find the current at any time t > 0 and the maximum current if E=32e-8tIn the figure ɛ = inductor is ideal. If the switch is closed for a long time, what is the current through the inductor. Give your answer in A. 10.0 V, R, = 4.00 N, and R2 = 1.00 N. The %3D %3D