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 the primary of an ideal transformer. b) Assuming the value that you obtain in part a) for the inductance of the primary coil, what will be the phase difference between the primary and secondary terminals for the 50 Hz signal?
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The input impedance of a speaker is 8Ω and is purely resistive
in nature. a) Assuming...
Assuming that the load impedance is to be purely resistive, what load should be connected to...
Assuming that the load impedance is to be purely resistive, what load should be connected to terminals a-b of the circuits in the given figure so that the maximum power is transferred to the load? Assume R 52 Ω. 100 Ω -j10Ω 40Ω 120/60° v (+ 2/90 A j30 Ω o b The value of R is Ω.
1.6 load not in a three phase system) is rated at 50 KVA with a power...
1.6 load not in a three phase system) is rated at 50 KVA with a power factor of 0.8 lagging. A what is the power factor angle? 1.7. For a balanced three phase system, if the wye connected load has impedance 50+20j, determine the total (a single load, complex power of the load if 120225° V rms (ignore the line impedance). 1.8 An ideal transformer has a tuns ratio (N2/NI) of 6, if the magnitude of the primary port (port...
Two coils shown in the diagram are wound around two iron cores. The primary coil has...
Two coils shown in the diagram are wound around two iron cores.
The primary coil has 500 turns, self-inductance 7.0 mH and
resistance fo 5.0 ohms. The battery supplies an EMF of 10.0V. The
secondary has 100 turns and resistance 1.0 ohms. The mutual
inductance of the system is 3.0 mH.
a) What is the time constant?
b) How much current is flowing in the primary after one time
constant?
c) How much back EMF is generated in the primary...
solve no: 3.14 , 3.16, 3.19 please show each step and solve for beginners 120 Power...
solve no: 3.14 , 3.16, 3.19
please show each step and solve for beginners
120 Power System Analysis 3.12. A single-phase system similar to that shown in Figure 3.11 has two transformers A-B a B-C connected by a line B feeding a load at the receiving end C. The ratings and parame ter values of the components are 500 V/1.5 kV, 9.6 kVA. leakage reactance 5 % 1.2 kV/120 V, 7.2 kVA, leakage reactance 4 % series impedance (0.5 +...
1 A single phase AC system Consider a single phase AC distribution system in which there...
1 A single phase AC system Consider a single phase AC distribution system in which there a single home connected to a 10kVA service transformer. Let’s assume that the primary of the distribution transformer can be modeled as an ideal 240V (rms) AC source and that the effective impedance of the transformer is 2% resistance and 3% reactance. (See lecture notes for converting % to Ohms). Connected to the secondary of the transformer is 200 ft of #6 AWG aluminum...
The circuit shown in Figure Q4-1 includes an audio source and the equivalent circuit of a...
The circuit shown in Figure Q4-1 includes an audio source and the equivalent circuit of a loudspeaker that you have been asked to analyse. 4. a) Assuming the speaker is to operate at a single frequency of 200 Hz and is5 driven by a cosinusoidal signal with peak amplitude of 20 V; determine the equivalent impedance of the speaker When connected to the audio source, calculate the current flow i() When testing the loudspeaker detailed in Q4a) i), you can...
From questions 1 to 13: 3 pd lags the current by (d) 30 In an RC...
From questions 1 to 13: 3 pd lags the current by (d) 30 In an RC cincuit, the voltage across the capacitor 2. The impedance of an Inductor with inductance 1 Henry for 10 Hz AC signal s. number of turns of the primary coil to the secondary coil? an LoR circuit when X X R, the phase difference between current and voltage is (d) 20 ? (b) 2 ? (c) 10 (a) ? 3 A step up transformer is...
Accuracy is important. Do not round intermediates and check the answer range to make sure you...
Accuracy is important. Do not round intermediates and check the
answer range to make sure you are correct.
Values:
[01] 2.08 [02]
68.47 [03] 0.239 [04] 1173.7 [05] 1403. [06] 53.8
THE CORRECT ANSWERS WILL BE IN THE FOLLOWING RANGES:
8-1a. 140, 220 Hz
8-1b. 40:0, 62:0 mA
8-2a. 70:0, 99:0 V
8-2b. 140:0, 160:0 V
8-2c. 60:0, 99:0 V
8-2d. 60:0, 90:0 V
8-3a. 40:0; 99:0 pF
8-3b. 100; 400 mV
8-3c. 1:00; 3:00 mV
8-4a. 100; 150 V...
32. A transformer is to be designed to increase the 30 kV-rms output of a generator...
32. A transformer is to be designed to increase the 30 kV-rms output of a generator to the transmission-line voltage of 345 kV-om. If the primary winding has 80 turns, how many turns must the secondary have? b. 70 c. 920 d. 9200 e 12 33. The primary winding of an electric train transformer has 400 turns and the Secondary has 50. If the input voltage is 120V(rms) what is the output voltage? a. 15 V (rms) b. 30 Vrms)...
I need Summary of this Paper i dont need long summary i need What methodology they used , what is the purpose of this p...
I need Summary of this Paper i dont need long summary i need
What methodology they used , what is the purpose of this paper and
some conclusions and contributes of this paper. I need this for my
Finishing Project so i need this ASAP please ( IN 1-2-3 HOURS
PLEASE !!!)
Budgetary Policy and Economic Growth Errol D'Souza The share of capital expenditures in government expenditures has been slipping and the tax reforms have not yet improved the income...
Assuming that the load impedance is to be purely resistive, what load should be connected to terminals a-b of the circuits in the given figure so that the maximum power is transferred to the load? Assume R 52 Ω. 100 Ω -j10Ω 40Ω 120/60° v (+ 2/90 A j30 Ω o b The value of R is Ω.
1.6 load not in a three phase system) is rated at 50 KVA with a power factor of 0.8 lagging. A what is the power factor angle? 1.7. For a balanced three phase system, if the wye connected load has impedance 50+20j, determine the total (a single load, complex power of the load if 120225° V rms (ignore the line impedance). 1.8 An ideal transformer has a tuns ratio (N2/NI) of 6, if the magnitude of the primary port (port...
Two coils shown in the diagram are wound around two iron cores.
The primary coil has 500 turns, self-inductance 7.0 mH and
resistance fo 5.0 ohms. The battery supplies an EMF of 10.0V. The
secondary has 100 turns and resistance 1.0 ohms. The mutual
inductance of the system is 3.0 mH.
a) What is the time constant?
b) How much current is flowing in the primary after one time
constant?
c) How much back EMF is generated in the primary...
solve no: 3.14 , 3.16, 3.19
please show each step and solve for beginners
120 Power System Analysis 3.12. A single-phase system similar to that shown in Figure 3.11 has two transformers A-B a B-C connected by a line B feeding a load at the receiving end C. The ratings and parame ter values of the components are 500 V/1.5 kV, 9.6 kVA. leakage reactance 5 % 1.2 kV/120 V, 7.2 kVA, leakage reactance 4 % series impedance (0.5 +...
The circuit shown in Figure Q4-1 includes an audio source and the equivalent circuit of a loudspeaker that you have been asked to analyse. 4. a) Assuming the speaker is to operate at a single frequency of 200 Hz and is5 driven by a cosinusoidal signal with peak amplitude of 20 V; determine the equivalent impedance of the speaker When connected to the audio source, calculate the current flow i() When testing the loudspeaker detailed in Q4a) i), you can...
From questions 1 to 13: 3 pd lags the current by (d) 30 In an RC cincuit, the voltage across the capacitor 2. The impedance of an Inductor with inductance 1 Henry for 10 Hz AC signal s. number of turns of the primary coil to the secondary coil? an LoR circuit when X X R, the phase difference between current and voltage is (d) 20 ? (b) 2 ? (c) 10 (a) ? 3 A step up transformer is...
Accuracy is important. Do not round intermediates and check the
answer range to make sure you are correct.
Values:
[01] 2.08 [02]
68.47 [03] 0.239 [04] 1173.7 [05] 1403. [06] 53.8
THE CORRECT ANSWERS WILL BE IN THE FOLLOWING RANGES:
8-1a. 140, 220 Hz
8-1b. 40:0, 62:0 mA
8-2a. 70:0, 99:0 V
8-2b. 140:0, 160:0 V
8-2c. 60:0, 99:0 V
8-2d. 60:0, 90:0 V
8-3a. 40:0; 99:0 pF
8-3b. 100; 400 mV
8-3c. 1:00; 3:00 mV
8-4a. 100; 150 V...
32. A transformer is to be designed to increase the 30 kV-rms output of a generator to the transmission-line voltage of 345 kV-om. If the primary winding has 80 turns, how many turns must the secondary have? b. 70 c. 920 d. 9200 e 12 33. The primary winding of an electric train transformer has 400 turns and the Secondary has 50. If the input voltage is 120V(rms) what is the output voltage? a. 15 V (rms) b. 30 Vrms)...
I need Summary of this Paper i dont need long summary i need
What methodology they used , what is the purpose of this paper and
some conclusions and contributes of this paper. I need this for my
Finishing Project so i need this ASAP please ( IN 1-2-3 HOURS
PLEASE !!!)
Budgetary Policy and Economic Growth Errol D'Souza The share of capital expenditures in government expenditures has been slipping and the tax reforms have not yet improved the income...
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