PLS ANSWER D AND E
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Three-Phase Transformers
Three-segment transformers are a type of transformer used to transform voltages of electrical systems into three ranges. Two type transformers are shell-type transformer and core type transformer. In brief, it could be described because of the exquisite kinds of configurations.
Transformer
Ever since electricity has been created, people have started using it in its entirety. We see many types of Transformers in the neighborhoods. Some are smaller in size and some are very large. They are used according to their requirements. Many of us have seen the electrical transformer but they do not know what work they are engaged in.
PLS ANSWER D AND E!!!
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- Two sinusoidal voltages of the same frequency have rms values of 8 V and 3 V. What is the smallest rms value that the sum of these voltages could have? The largest? Justify your answers.a-Calculate and draw the load current for the steady-state condition b-Find the RMS values of the load voltage and the load currentThe 9 Ω resistor in the circuit is replaced with a variable impedance Zo. Assume Zo is adjusted for maximum average power transfer to Zo. 1. a) What is the maximum average power that can be delivered toZo?2. b) What is the average power developed by the ideal voltage sourcewhen maximum average power is delivered to Zo?3. c) Choose single components from Appendix H to form animpedance that dissipates average power closest to the value in part(a). Assume the source frequency is 60 Hz.
- A dc voltage equal to Vdc V is applied to a resistor of R Ω. Asinusoidal voltage equal to vs V is also applied to a resistor of R Ω.Show that the dc voltage will deliver the same amount of energy in Tseconds (where T is the period of the sinusoidal voltage) as thesinusoidal voltage provided Vdc equals the rms value of vs. (Hint:Equate the two expressions for the energy delivered to the resistor.)A voltage is given by v(t)=50 sin(500πt+120°).. First, use a cosine function to express v(t). Then, find the angular frequency, the frequency in hertz, the phase angle, the period, and the rms value. Find the power that this voltage delivers to a 50-Ω resistance. Find the first value of time after t=0 that v(t) reaches its peak value. Sketch v(t) to scale versus time. * Denotes that answers are contained in the Student Solutions files. See See Appendix E for more information about accessing the Student Solutions.In the network of the figure in steady state, a sinusoidal current source given by Is (t) = 40cos100t A, produces a current i0 (t) = 2.5cos (100t-24 °) A. Determine i0 (t) for the cases: a) Is (t) = 20cos (1000t-40 °) A; b) Is (t) = 20 ^ (j25 °) e ^ (- j1000t) A; and c) Is (t) = 10sen (1000t-40 °) A
- A voltage is given by v( t )=10 sin(1000πt+30°). First, use a cosine function to express v(t). Then, find the angular frequency, the frequency in hertz, the phase angle, the period, and the rms value. Find the power that this voltage delivers to a 50-Ω resistance. Find the first value of time after t=0 that v(t) reaches its peak value. Sketch v(t) to scale versus time. * Denotes that answers are contained in the Student Solutions files. See See Appendix E for more information about accessing the Student Solutions.If a current 5.0 A lags the applied voltage 230 V by an angle ϕ, it can be resolved into two components, OA in phase with the voltage and OB lagging by 90°. If the phasor diagram in to a circuit possessing resistance and inductance in series, OA and OB must not be labelled and respectively. It has become the practice to say that the power factor is laggingwhen the current lags the supply voltage, and leading when the current leads the supply voltage. This means that the supply voltage is regarded as the reference quantity. (a) A 30 μ F capacitor is connected across the applied voltage, 50 Hz supply. Calculate the reactance of 30 μ F capacitor connected across applied voltage (b) the reactance of the capacitor; (c) the current.Application of Complex Number to EE (25 pts). Using Ohm’s Law (? = ? × ?), determine the following given a component having an impedance (Z) equation below and a current (I) equation passing through it. ? = (?? ??)^? + (? − ??)^?/? ohms; ? = ? ? amps a. Evaluate and simplify the component’s impedance (Z). Express your answer in polar form and in ohms. Use the principal root value only (if applicable). b. Evaluate and simplify the current (I) passing through the component. Express your answer in polar form and in amperes. c. Using Ohm’s Law (? = ? × ?), determine the voltage (V) across the component. Express your answer in polar form and in volts.
- A circuit branch is found to have an equivalent impedance of Z=120−j45Ω. It is given that this impedance is a series combination of a 120Ω resistor and another passive component. If the circuit has a sinusoidal voltage source whose frequency is 120 Hz. What is the value of the component in series with the 120Ω resistor? (Note: Express the value assuming a metric scaling of μ(10-6). Provide your answer in decimal form, up to 3 decimal places.)A 60-Hz 240-V-rms source supplies power to a load consisting of a resistance in series with an inductance. The real power is 1500W, and the apparent power is 2500 VA. Find the impedance and power factor in the system.Find the total impedance, voltage drop on the 100-ohm resistor, draw the phasor diagram of the voltage and current at R1, total power (apparent) delivered by the current source, draw the phasor diagram of the voltage and current at the source. Also, is the circuit inductive, capacitive, or neither (resistive)? please give the step-by-step solution NOTE: Polar form for Voltage & Current. Rectangular form for Impedance