balanced 3-phase, 3-wire, 240v, 60hz, system supplies power to a star connected resistance 8,10, and 15 ohms respectively. What is the magnitude of the current in the 15 ohms resistance?
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A balanced 3-phase, 3-wire, 240v, 60hz, system supplies power to a star connected resistance 8,10, and 15 ohms respectively. What is the magnitude of the current in the 15 ohms resistance?
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- 2. An inductive reactance of 8 0 is connected in parallel with a capacitive reactance of 18 N; this combination is then connected in series with a variable resistance. For what value of resistance will the power factor be 0.5, and what current will the circuit takes if the impressed voltage is 118 volts?The sizes of the given circuit elements are given below.What is the average power delivered by the Is current source?R1 = 8 ohmsR2 = 8 ohmsL1 = 9 milliHenryL2 = 8 milliHenryn = 3V0 = 50cos(1300t+30) Voltsthe total power dissipated by three 7092 resistors when connected a) in star and b) in delta to a 440V, 3-phase supply. 4. Determine
- Calculate the power factor and phase angle in a sinusoidal current-carrying circuit from measuring current, voltage, and power. The current reading was 2.5 amps on a 5-amp scale, the voltage reading was 200 volts on a 250-volt scale, and the capacity was 220 watts on a 500-watt scale. The ammeter and voltmeter are guaranteed to the limit (1% +-) of the reading of the highest scale, as well as the wattmeter. Calculate the percentage of the accuracy of the measured readingsAn inductive reactance of 8 ohms is connected in parallel with a capacitive reactance of 18 ohms; this combination is then connected in series with a variable resistance. For what value of resistance will the power factor be 0.5, and what current and power will the circuit take if impressed enf is 118 volts.17 In the figure shown, the voltage V1 the voltage V2 by V₁ * out of phase. 40)
- 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. What is the minimum AC voltage rating of each capacitor? Answer is 1200 volts. What is the current flow through the circuit? And what is the minimum kVAR rating of each capacitor?1. What is the relationship of voltage and current (concerning phase angle) in a pure resistive circuit?Problem 5 For two electrical system shown in Figure 5, use cyclic currents to derive a complete mathematical model for each of the electrical systems. Ri. Rz ca) Cz (6) ERZ RI
- Can you help me ? Three identically shaped segments of different materials have a voltage of 120 mV applied between their ends. As a result of the voltage, segment A has a current of 2500muA , segment B has a current of 105 μA and segment C has a current of 0.000002 A. The materials are conductor, semi- conductor and insulators as Determined?A circuit consist of a resistance of 30ohm in series with an inductance of 75mH, is connected in parallel with a circuit consisting a resistance of 20ohm in series with a capacitance of 100 micro farad. If parallel combination is connected with 240 volts . 50 cycle per second single phase supply. Calculate a). Current in each branch b). Total current C). Power factor d). Total power consumedWhat is the value of the independent current source in terms of ambient currents?