4. Calculate source deformation power in the following circuit. Assume all resistors = 10 ohms, reactance of the coil = 5 ohms, and e(t)=14.07 sin(100 t)+7.035 sin(200 t) + 3.5 sin( 300 t). k₂ (7 34 Belt)
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- Two identical 900 turn coils A and B lie in parallel plane. A current changing at the rate of 2500 A/s in A induces an emf of 20 V in B. (a) Calculate coefficient of coupling between the two coils (b) If the inductance of each coil is 25mH, calculate the flux produced in coil A per ampere.When a voltage of 100V at 50Hz is applied to an impedance coil A, the current taken is 8A and the power is 120 W. When applied to an impedance coil B, tue currents is 10 A and the power is 500W. What current and power will be talen when 120V, 60 Hz is applied when two coils are connected in parallel?When an impedance coil is connected to a 100 V, 60-Hz, ac supply, the circuit currentis 1.325 A. When it is connected to a 100 V, 30-Hz, ac supply, the circuit current is 1.741A. Find the resistance and the inductance of the impedance coil. PLEASE ANSWER ASAP
- An impedance coil takes 10A and absorbs 250 W when connected across a 220V, 60Hz source. What power will it absorb when connected across 110 V, 25 Hz mains? a. 539 W b. 239 W c. 439 W d. 339 WA generating voltmeter is required to measure voltage between 15kV and 250kV. If the indicating meter reads a minimum current of 2uA and maximum of 35uA. Assume that the speed of driving synchronous motor is 1500rpm. Determine the capacitance of the generating voltmeter. A. 1,2 pF B. 6.5 pF C. 15,2pF D. 1 pFA three phase load consists of three similar inductive coils each of 50 ohm and inductance 0.3 H. The supply is 415 V , 50 Hz. Calculate 1- line Current 2- the power factor 3- the total power when the load is a) star connected b) Delta connected ( Please provide correct answer with appropriate steps )
- Q2. A coil of resistance 5Ω is connected in series with inductance 120mH is connected to a 215V, 50 Hz supply. Calculate (a) the current flowing, (b) the phase difference between the supply voltage and current, (c) the voltage across the coil and (d) the voltage across the resistor. Draw the phasor diagram.A resistor of 6 ohms and an unknown impedance coil in series draws 12A from a 120V, 60 HZ line. if the real power taken from the line is 1,152W. What is the coil impedance?An alternating voltage v = 100 sin 120pi t volts is applied across a coil ofresistance 32 Ω and inductance of 100 mH. Determine (a) the circuitimpedance, (b) the current flowing, (c) the voltage drop across the resistanceand (d) the voltage drop across the inductance.
- In a cold storage, cosφ = 0.9 for 8 various motors, the total power of the motors is 48kW, the synchronicity factor of the facility is 0.70, and 8 60W and 2 100W incandescent lamps for lighting (cosφ = 1) 4 pieces of 125W, 2 pieces of 250W, 3 pieces of 400W sodium vapor lamps (cosφ = 0,8) are used. Find the appropriate transformer value1-Three inductive coils each of inductance 60mH are connected in star to a 3 phase, 200V, 50Hz supply. Calculate the phase current 2-A single –phase, 800V / 120 V, 50 Hz transformer has a maximum core flux density of 1.3 Tesla and an effective cross-sectional area of 65 cm2. Calculate the number of turns on the primary and secondary windings.Two coils A and B are connected in series across 200 V, 50 – Hz AC supply. Thepower input to the circuits is 2.2 kW and 1.5 kVAR. If the resistance of coil A is 4ohms and the reactance is 8 ohms, calculate resistance and reactance of coil B.Also calculate active power consumed by coil A and B, total impedance of thecircuit.