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Assuming that the load impedance is to be purely resistive, what load should be connected to...
The input impedance of a speaker is 8Ω and is purely resistive in nature. a) Assuming...
The input impedance of a speaker is 8Ω and is purely resistive in nature. a) Assuming this speaker is connected across the secondary of a 1:1 transformer, what must be the self-inductance of the primary coil so that this inductance will have no more than a 10% effect on the effective impedance of the transformer and speaker as seen by the driving amplifier at a frequency of 50 Hz. Assume that this primary impedance acts as a parallel path to...
1. An rms voltage of 100 V is applied to a purely resistive load of 5.00...
1. An rms voltage of 100 V is applied to a purely resistive load of 5.00 22. Find (a) the maximum voltage applied, (b) the rms current supplied, (c) the maximum current supplied, and (d) the power dissipated.
a. What is the PVR of a transformer delivering rated current to a purely resistive load...
a. What is the PVR of a transformer delivering rated current to a purely resistive load if the transformer has R = 0.03 pu Q and x = 0.044 pu (the magnetizing branch impedance can be neglected)? Assume that the source voltage is 1 pu. (2 marks)
Solve by hand and simulate in any electrical circuit simulator preferrably LTSpice Solve by hand only. Problem #4: Consider the circuit shown below. 6Ω /8 Ω 302 2700 V (rms) 40 2 Source-Line Load...
Solve by hand and simulate in any electrical circuit
simulator preferrably LTSpice
Solve by hand only.
Problem #4: Consider the circuit shown below. 6Ω /8 Ω 302 2700 V (rms) 40 2 Source-Line Load (a) Find the real power dissipated in the line. (b) Find the capacitive reactance that when connected in parallel with the load will pl make the load look purely resistive. (c) What is the equivalent impedance of the load in (b)? (d) Find the real power...
I Review The figure below shows a resistive load R = 7 12 connected to a...
I Review The figure below shows a resistive load R = 7 12 connected to a Thevenin equivalent circuit (Figure 1). Suppose that V = 36 V Part A For what value of Thevenin resistance is the power delivered to the load maximized? (Hint: Be careful; this is a tricky question if you don't stop to think about it.) Express your answer to two significant figures and include the appropriate units. ? .! HA Rs = Value O 2 Units...
A resistive load of R = 10Ω is to be connected to a 50Ω source, operating...
A resistive load of R = 10Ω is to be connected to a 50Ω source, operating at f = 103.1 MHz. Design a transmission line circuit connecting source and load for maximum power transfer. For your design, what is the reduction (in percent) in power dissipated in the load if the frequency is changed to f-91.5 MHz?
A three-phase line, which has an impedance of (2 + j4) Ω per phase, feeds two...
A three-phase line, which has an impedance of (2 + j4) Ω per phase, feeds two balanced three-phase loads that are connected in parallel. One of the loads is Y- connected with an impedance of (30 + j40) Ω per phase, and the other is delta- connected with an impedance of (60 + j45) Ω per phase. The line is energized at the sending end from a 60-Hz, three phase, balanced voltage source of 120√3 V (rms, line- to-line). Determine...
Q5: (a) Calculate the Thevenin's Voltage, Veh and Thevenin's impedance, Zsh at the terminals a-b ...
Q5: (a) Calculate the Thevenin's Voltage, Veh and Thevenin's impedance, Zsh at the terminals a-b of the circuit shown in Figure-5. [6+6] (b) What value of load impedance Zu which can be connected at terminals a-b for maximum power dissipation in Zu? (c) Calculate the maximum power, Pmax which can be dissipated in Zu 40 (RMS)A -j40 6Ω (RMS) 80 Figure-5
Q5: (a) Calculate the Thevenin's Voltage, Veh and Thevenin's impedance, Zsh at the terminals a-b of the circuit shown...
508 CHAPTER 11 . POLYPHASE CIRCUITS 11.40 In a balanced three-phase system, the source has an...
508 CHAPTER 11 . POLYPHASE CIRCUITS 11.40 In a balanced three-phase system, the source has an aboc phase-sequence and is connected in delta. There are two rallel wye-connected loads. The phase impedance of load i and load 2 is 4 The line impedance connecting the source to the loads is 0.3 + j0.2 2. If the curre IAN! = 10/20-Arms, find the delta currents in the source 4 Ω and 10 +/4 Ω, respectively. nt in the a phase of...
2-The Theve load impedance must be (a) 40+j25 (b) 40-j25 c)-40+25j non impedance seen from the...
2-The Theve load impedance must be (a) 40+j25 (b) 40-j25 c)-40+25j non impedance seen from the load terminals is 40-125 Ω. For the maximum average power transfer, the- d) 40-25j
1. An rms voltage of 100 V is applied to a purely resistive load of 5.00 22. Find (a) the maximum voltage applied, (b) the rms current supplied, (c) the maximum current supplied, and (d) the power dissipated.
a. What is the PVR of a transformer delivering rated current to a purely resistive load if the transformer has R = 0.03 pu Q and x = 0.044 pu (the magnetizing branch impedance can be neglected)? Assume that the source voltage is 1 pu. (2 marks)
Solve by hand and simulate in any electrical circuit
simulator preferrably LTSpice
Solve by hand only.
Problem #4: Consider the circuit shown below. 6Ω /8 Ω 302 2700 V (rms) 40 2 Source-Line Load (a) Find the real power dissipated in the line. (b) Find the capacitive reactance that when connected in parallel with the load will pl make the load look purely resistive. (c) What is the equivalent impedance of the load in (b)? (d) Find the real power...
I Review The figure below shows a resistive load R = 7 12 connected to a Thevenin equivalent circuit (Figure 1). Suppose that V = 36 V Part A For what value of Thevenin resistance is the power delivered to the load maximized? (Hint: Be careful; this is a tricky question if you don't stop to think about it.) Express your answer to two significant figures and include the appropriate units. ? .! HA Rs = Value O 2 Units...
A resistive load of R = 10Ω is to be connected to a 50Ω source, operating at f = 103.1 MHz. Design a transmission line circuit connecting source and load for maximum power transfer. For your design, what is the reduction (in percent) in power dissipated in the load if the frequency is changed to f-91.5 MHz?
Q5: (a) Calculate the Thevenin's Voltage, Veh and Thevenin's impedance, Zsh at the terminals a-b of the circuit shown in Figure-5. [6+6] (b) What value of load impedance Zu which can be connected at terminals a-b for maximum power dissipation in Zu? (c) Calculate the maximum power, Pmax which can be dissipated in Zu 40 (RMS)A -j40 6Ω (RMS) 80 Figure-5
Q5: (a) Calculate the Thevenin's Voltage, Veh and Thevenin's impedance, Zsh at the terminals a-b of the circuit shown...
508 CHAPTER 11 . POLYPHASE CIRCUITS 11.40 In a balanced three-phase system, the source has an aboc phase-sequence and is connected in delta. There are two rallel wye-connected loads. The phase impedance of load i and load 2 is 4 The line impedance connecting the source to the loads is 0.3 + j0.2 2. If the curre IAN! = 10/20-Arms, find the delta currents in the source 4 Ω and 10 +/4 Ω, respectively. nt in the a phase of...
2-The Theve load impedance must be (a) 40+j25 (b) 40-j25 c)-40+25j non impedance seen from the load terminals is 40-125 Ω. For the maximum average power transfer, the- d) 40-25j
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