Problem: A 250 resistor is connected inductance in parallel with an of 2.5 mH across a Vrms = 75<0° V, f = 1 kHz supply. Calculate (a) the current in each branch, (b) the supply current, (c) the circuit phase angle, (d) the circuit impedance and (e) the power consumed.
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- A 15-F AC capacitor is connected in series with a 50 resistor. The capacitor has a voltage rating of 600 WVDC. The capacitor and resistor are connected to a 480-V, 60-Hz circuit. Is the voltage rating of the capacitor sufficient for this connection?An inductance coil consumes 500W of power at 10A and 110V and 60HZ. Determine the resistance and the inductance of the coilIn a series circuit with the following devices to a 230volts 60Hz supply with a resistor in the range of 300 ohms and 990 ohms. What are the steps in calculating the impedance ...
- A 1-H inductor is connected in series with a 6-ohm resistor. If the connection is energized from a 9-V DC source, determine the current (in amperes) through the circuit for a long time. The initial current is 100 mA. Express your answers accurate to four decimal places. No need to put the units.A utility company plans to connect a total of 20uF of capacitance to a 7200 volt line. To make this connection four capacitors will be connected in series. What is the capacitance of each capacitor? Answer is 80uF. Now what is the minimum AC voltage rating of each capacitor?An inductor and resistor are connected in parallel to a 120-V, 60-Hz line. The resistor has a resistance of 50 ohms, and the inductor has an inductance of 0.2 H. How many degrees out of phase are the current and voltage?
- 1. Enumerate five formulas for five series connected inductances across Vt source and draw the circuit. 2. Enumerate five formulas for five parallel connected inductances across Vt source and draw the circuit.Figure 2 shows three "LC" circuits, two of them with capacitors of capacitance "C" and the three with inductance coils "L", the three circuits are coupled by means of two capacitors "Cc" capacitors. inductance "L", the three circuits are coupled by means of two capacitors of capacitance "Cc". The currents circulating through each mesh are those indicated in the figure: "I1", "I2" and "I3". Using Kirchhoff's law for voltages and taking into account the definition of current I = -dQ/dt, find the system of coupled equations of the system and then find the angular normal frequencies of the system.Let's say you measure t1/2 to be 0.037 seconds and the resistance in the circuit is 68 Ohms. Then what is the capacitance in micro Farads? Answer in micro Farads.
- A resistor & a capacitor are connected in series across 230V, ac supply. The current taken by the circuit is 4 A for 50 Hz frequency. The current is reduced to 2 A, when the frequency of supply is decreased to 40 Hz. Determine the value of resistor & the capacitor.A)For the inductive element of Figure 2 , the voltage and current in phasor form is B)the value of impedance and capacitance for capacitor in figure 2 isA resistance of 20 ohms and an unknown capacitance are connected in parallel to a 110-Vac, variable frequency source. When the frequency is 60 Hz, the current drawn by the circuit is 6 A. At what frequency will the current drawn falls to 5.8 A.