The electrical circuit in the figure consists of apower supply (120 and 30) volt and six resistorsconnected as in the figure.1- Convert the resistors 100, 502, 2002 to delta.120Vwww12.50D10Ω50nww15052002b300

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Answered: The electrical circuit in the figure…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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The following data were obtained on a 50 kVA 2400/120 V transformer: Open circuit test, instruments on low voltage side: Waltmeter reading = 396 Watts Ammeter reading = 9.65 amperes Voltmeter reading = 120 Volts Short circuit test, instruments on high voltage side: Waltmeter reading = 810 Watts Ammeter reading = 20.8 amperes Voltmeter reading = 92 Volts Find the efficiency when rated kVA is delivered to a load having a power factor of 0.8 lagging.The following data were obtained on a 50 kVA 2400/120 V transformer : Open circuit test, instruments on low voltage side: Waltmeter reading = 396 Watts Ammeter reading = 9.65 amperes Voltmeter reading = 120 Volts Short circuit test, instruments on high voltage side: Waltmeter reading = 810 Watts Ammeter reading = 20.8 amperes Voltmeter reading = 92 Volts Find the efficiency when rated kVA is delivered to a load having a power factor of 0.8 lagging.
The 3D Hooke's law is 0₂ o 6₂ Oxy XZ 0₂ yz E (1+v)(1−2v) 1-v 2 U 0 0 0 U 1-v 2 0 0 0 0 0 1-v 0 0 0 0 2 1-2v 0 0 0 0 0 0 1-2v 0 0 0 0 0 w w Ez Exz 0 1-2v|yz) where E is the Young's modulus, vis the Poisson's ratio. a) Derive the stiffness matrix and compliance matrix for plane strain condition (&xz = &yz = Ezz = 0). b) Derive the stiffness matrix and compliance matrix for plane stress condition (0xz = 0 yz =O₂z = 0). E y. c) Show that for uniaxial stress condition (σ #0, all other stress components are zero), the Young's modulus can be expressed as E = ºx, and the Poisson's ratio as v=-² Ex Ex
The sinusoidal current waveform having the maximum value of 75 A, then the R.M.S value is
4. A circuit contains a 20-2 resistor and an inductor with an inductance of 0.093 H. If the circuit has a frequency of 60 Hz, what is the total impedance of the circuit? 5. An R-L series circuit has a power factor of 86%. By how many degrees are the voltage and current out of phase with each other? 6. An R-L series circuit has an apparent power of 230 VA and a true power of 180 W. What is the reactive power? 7. The resistor in an R-L series circuit has a voltage drop of 53 V, and the inductor has a voltage drop of 28 V. What is the applied voltage of the circuit?
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1- A J-Type thermocouple referenced to 80°F has a measured output emf of 2.878 mV. What is the temperature of the measuring junction?
In a series connection of thermocouples (Fig. a), emfs of individual thermocouples get added. Four Type-J thermocouples are connected in series as shown in figure below with their combined output emf = 7.029 mV. What will be the output if these connections are to be replaced by a parallel connection as shown in Fig. b.
2-Calculate characteristic length, (m); L̟ =VA Biot number Bi =".L% :Fourier number , Fo =at ;; diffusivity a = " p.Cp 3-How can we ensure that the lumped capacitance is valid.
1- A LOAD CELL IS SCALED 4.20mA = 0-20,000 LB WHAT IS THE WEIGHT AT 14.6m A ? 14.6 m² = tan = 10.6 = 167.6625 WHAT IS THE WEIGHT AT 5.7 MA? 5.7mA? 2- A TEMPERATURE TRANSMITTER IS CALIBRATED 4-20mA = 30-280°F WHAT IS THE MA AT 95°F ? WHAT IS TEMPERATURE AT 9.7 mA?
Q1) For the series circuit in Fig. (1): a. Find the total resistance RT. b. Determine the source current Is and indicate its direction on the circuit. c. Find the voltage across resistor R2 and indicate its polarity on the circuit. - V2 + R =70 R2 = 4 N E50 V R3 RT R4
Solve the following differential equation: dy – 2y – x*e-2x = 0 dx

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The electrical circuit in the figure consists of a power supply (120 and 30) volt and six resistors connected as in the figure. 1- Convert the resistors 100, 502, 2002 to delta. 120V www 12.50 D 10Ω 50 n ww 1505 2002 b 300