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hi please help me find the correct current in mA
Question 1: A transformer is connected...
Please help with BOTH of the following questions for a thumbs up! Thanks! 8. + -/1...
Please help with BOTH of the following questions for a thumbs
up! Thanks!
8. + -/1 points SerPSE 10 32.8.OP.021. My Notes + Ask Your Teach A step-down transformer is used for recharging the batteries of portable electronic devices. The turns ratio N/N, for a particular transformer used in a DVD player is 1:14. When used with 120-V (rms) household service, the transformer draws an rms current of 33.0 mA from the house outlet. (a) Find the rms output voltage...
ECET 212 ELECTRICAL POWER &MOTORS QUESTIONS 1. Transformer regulation can be determined with the formula a....
ECET 212 ELECTRICAL POWER &MOTORS QUESTIONS 1. Transformer regulation can be determined with the formula a. (EPRI-ESEc) / EPRI x100% b. (ENL- EFL)/ EFL x100% c. (IPRI-ESEC) / IPRI×100% d. (INL-IFL) / INL X 100% 2. What is the transformer regulation if the no-load and full-load voltages are 100 V and 95 v respectively? a. 105% b. 10.5% C. 95% d. 5.3% 3. The secondary voltage can rise above its rated value when the load is a. resistive b. capacitive...
please help Question 1 Consider the following circuit, where the reverse saturation current (Is) is the...
please help
Question 1 Consider the following circuit, where the reverse saturation current (Is) is the same for each diode. D2 o Vo Di Vi WWW R 32 23 a. b. Determine an algebraic expression for V1, for a given Vo, and Is. Given an Is of 40 FA and R1 = 3.3 kl , determine the Vi that produces an output voltage (V.) of 0.625 V. C. Recalculate question-b if Is were to be a thousand times greater at...
A large transformer operating at no-load draws an exciting current of 5 A when the primary is connected to a 240 V, 50 Hz source (HELP)
Question 1: A large transformer operating at no-load draws an exciting current of 5 Awhen the primary is connected to a 240 V, 50 Hz source. From wattmeter testit is known that the iron losses are equal to 300 W. At short circuit the voltage applied is 24 Volts , the short-circuit current is 35 Amperes, the power meter reads 400 W. Calculate:i) The reactive power absorbed by the core;ii) The value of Rc and Xm of the magnetising branch; iii)...
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)...
help me please please answer many as possible 10. The hysteresis loss in the core of a transformer can be reduced by A. increasing the frequency of the aliemating current, B. using a solid iro...
help me please
please answer many as possible
10. The hysteresis loss in the core of a transformer can be reduced by A. increasing the frequency of the aliemating current, B. using a solid iron core. C. using grain-oriented-steel D, reducing the connected load. 11. In Fig. 1(b) in the text, the phasor I, It is the resultant of the A. exciting and the magnetizing current. B. active and the reactive secondary current. C. primary and the exciting current. D....
need the answer for the question no. 1 ENGR 113 Homework DC Motor Objectives Plot the...
need the answer for the question no. 1
ENGR 113 Homework DC Motor Objectives Plot the Torque-Speed curve for a given DC motor given the stall torque and no load speed values Calculate the rotational power for a DC motor given the stall torque and no load speed values Plot the rotational power on a Torque-Speed curve to see the relationship between torque, speed, and power Calculate the maximum efficiency of a DC motor. Calculate the operating point for a...
Please help me with question 2 ASAP Question 1 [15 Marks A 500-kV, 60-Hz, 3-phase completely...
Please help me with question 2 ASAP
Question 1 [15 Marks A 500-kV, 60-Hz, 3-phase completely transposed overhead line has the resistance R=0.0201/km, Ds = 0.149m and r=0.16m. The horizontal phase spacings between the conductors are 10, 10, and 20 m. Calculate a) the line inductive reactance in /km, b) the line impedance in /km, c) the line capacitance-to-neutral Can in F/m, d) the admittance-to-neutral in S/km, neglecting the effect of the earth plane, and e) the exact ABCD parameters...
please, answer all questions Question 3 For Figure 1 use Kirchhoff's Laws to find the currents...
please, answer all questions
Question 3 For Figure 1 use Kirchhoff's Laws to find the currents 11, 12 and 13, and find the total resistance of the circuit. Total 10 marks Space to answer Question 3 here RI R; 492 1 1, 192 + + 12 22 B 28 V R2 7V B2 Figure 1: Question 4 a) Two 8k resistors are connected as a potential divider with a supply p.d. of 20 mv. What is the current flowing and...
Question 1 a) Calculate the Effective Resistance of the circuit and total current of the network...
Question 1 a) Calculate the Effective Resistance of the circuit and total current of the network in figure 1 (5 marks) b) Calculate the Effective Resistance of the Network of Resistors in figure 2 (5 marks) Total 10 marks Space to answer Question 1 here + 9V R 90 92 SRZ 45 32 Rz 180 32 Figure 1: 10 10 102 102 А 320 3202 320 19 B Figure 2 Question 2 a) Explain the assumptions made in the definition...
Please help with BOTH of the following questions for a thumbs
up! Thanks!
8. + -/1 points SerPSE 10 32.8.OP.021. My Notes + Ask Your Teach A step-down transformer is used for recharging the batteries of portable electronic devices. The turns ratio N/N, for a particular transformer used in a DVD player is 1:14. When used with 120-V (rms) household service, the transformer draws an rms current of 33.0 mA from the house outlet. (a) Find the rms output voltage...
ECET 212 ELECTRICAL POWER &MOTORS QUESTIONS 1. Transformer regulation can be determined with the formula a. (EPRI-ESEc) / EPRI x100% b. (ENL- EFL)/ EFL x100% c. (IPRI-ESEC) / IPRI×100% d. (INL-IFL) / INL X 100% 2. What is the transformer regulation if the no-load and full-load voltages are 100 V and 95 v respectively? a. 105% b. 10.5% C. 95% d. 5.3% 3. The secondary voltage can rise above its rated value when the load is a. resistive b. capacitive...
please help
Question 1 Consider the following circuit, where the reverse saturation current (Is) is the same for each diode. D2 o Vo Di Vi WWW R 32 23 a. b. Determine an algebraic expression for V1, for a given Vo, and Is. Given an Is of 40 FA and R1 = 3.3 kl , determine the Vi that produces an output voltage (V.) of 0.625 V. C. Recalculate question-b if Is were to be a thousand times greater at...
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)...
help me please
please answer many as possible
10. The hysteresis loss in the core of a transformer can be reduced by A. increasing the frequency of the aliemating current, B. using a solid iron core. C. using grain-oriented-steel D, reducing the connected load. 11. In Fig. 1(b) in the text, the phasor I, It is the resultant of the A. exciting and the magnetizing current. B. active and the reactive secondary current. C. primary and the exciting current. D....
need the answer for the question no. 1
ENGR 113 Homework DC Motor Objectives Plot the Torque-Speed curve for a given DC motor given the stall torque and no load speed values Calculate the rotational power for a DC motor given the stall torque and no load speed values Plot the rotational power on a Torque-Speed curve to see the relationship between torque, speed, and power Calculate the maximum efficiency of a DC motor. Calculate the operating point for a...
Please help me with question 2 ASAP
Question 1 [15 Marks A 500-kV, 60-Hz, 3-phase completely transposed overhead line has the resistance R=0.0201/km, Ds = 0.149m and r=0.16m. The horizontal phase spacings between the conductors are 10, 10, and 20 m. Calculate a) the line inductive reactance in /km, b) the line impedance in /km, c) the line capacitance-to-neutral Can in F/m, d) the admittance-to-neutral in S/km, neglecting the effect of the earth plane, and e) the exact ABCD parameters...
please, answer all questions
Question 3 For Figure 1 use Kirchhoff's Laws to find the currents 11, 12 and 13, and find the total resistance of the circuit. Total 10 marks Space to answer Question 3 here RI R; 492 1 1, 192 + + 12 22 B 28 V R2 7V B2 Figure 1: Question 4 a) Two 8k resistors are connected as a potential divider with a supply p.d. of 20 mv. What is the current flowing and...
Question 1 a) Calculate the Effective Resistance of the circuit and total current of the network in figure 1 (5 marks) b) Calculate the Effective Resistance of the Network of Resistors in figure 2 (5 marks) Total 10 marks Space to answer Question 1 here + 9V R 90 92 SRZ 45 32 Rz 180 32 Figure 1: 10 10 102 102 А 320 3202 320 19 B Figure 2 Question 2 a) Explain the assumptions made in the definition...
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