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please solve all the questions, i really need the answers. also
please show all the required...
I need the answers to these ten questions. I have attached them below. Please answer all...
I need the answers to these ten questions. I have attached them
below. Please answer all of them. Thank you so much in advance!
If a rod is moving at a velocity equal to 1/2 the speed of light parallel to its length, what will a stationary observer observe about its length? O The length of the rod will become exactly half of its original value. O The length of the rod remains the same. The length of the rod...
Please answer the problem below for all parts . Please show all work and write clearly. Thanks.
Please answer the problem below for all parts . Please show all
work and write clearly. Thanks.
(a) (0) What is the difference between an autotransformer and a conventional transformer? 2. (ii) Why are high-impedance transformer used in electric toys? (b) Three single-phase transformers each rated at 150 kVA, 7200 V/600 V, 60 Hz, are connected in wye-delta on a 12470 V, 3-phase line. If the load is 450 kVA, calculate the followings: (i) The current flowing in the incoming...
transformers
Learning Goal: To understand the concepts explaining the operation of transformers.One of the advantages of alternating current (ac) over direct current (dc) is the ease with which voltage levels can be increased or decreased. Such a need is alwayspresent due to the practical requirements of energy distribution. On the one hand, the voltage supplied to the end users must be reasonably low for safety reasons(depending on the country, that voltage may be 110 volts, 220 volts, or some other value...
Can you help me solve this problem and show the steps? The local transformer shown below...
Can you help me solve this problem and show the steps?
The local transformer shown below provides the last voltage stepdown in a power distribution system. A common sight on utility poles in residential areas, it is a single-phase transformer that typically has a 13.8-kV rms line to neutral on its primary coil, and a center tap secondary coil provides both 120 V rms and 240 V rms to service several residences. A typical example of this transformer is shown...
Please answer all the questions, thank you! It is a important homework for me! I will...
Please answer all the questions, thank you! It is a important
homework for me! I will like you answer if correct!
For the questions on this page, assume that that an induction motor is rated to deliver 10kW (approximately 13.3HP} when operated at 240VRMS 60Hz. The motor has a lagging power factor of 0.8. The building electrical service only supplies 208VRMs, so the motor can not be connected directly to the electric service. An ideal transformer is used to create...
I need help with all of these questions because they are related to one question. Please...
I
need help with all of these questions because they are related to
one question. Please show all working so I fully understand.
Answers:
2a) e = - d(N*magneticFlux) / dt
2b) I) 98 % reached in 0.144 ms
2b) ii) Max energy = 1.84 x 10^-5 J
c) i) Ns = 10 or 10.5 turns
c) ii) Rl= 500 kohm, ip= 2.08 mA
2. Write the equation for the voltage induced in a coil by a changing magnetic field....
All of them 11) 11) The coil of a generator is rotated twice as fast keeping...
All of them
11) 11) The coil of a generator is rotated twice as fast keeping all other factors constant. What happens to the value of the maximum induced emf? A) It is increased by a factor of 4. B) It stays the same. C) It is reduced by a factor of 2 D) It is increased by a factor of 2 E) It is reduced by a factor of 4. 12) The primary codl of a transformer has 100...
QUESTION 13 speed of 500 m/s, what should the magnitude of the electric field be? An...
QUESTION 13 speed of 500 m/s, what should the magnitude of the electric field be? An unknown charged particle is fired into a velocity selector. The magnetic field in the velocity selector is 1.2 T. If we would like to select for a 3. 417 NC b.333 N/C C. 480 N/C - d. 600 N/C QUESTION 14 A long solenoid has 150 turns per cm and carries a current of 400 mA. What is the magnetic field inside the solenoid?...
Write neat please. Show step by step please. Read instructions carefully. do all problems please. double...
Write neat please. Show step by step please. Read
instructions carefully. do all problems please. double check your
work. Box in answer please. Thank you
Question 37 1 pts Compared to a single lamp connected to a battery, two identical lamps connected in series to the same battery will carry less current. the same current. O more current. Question 38 1 pts If a compass is moved from the northern hemisphere to the southern hemisphere, its magnetic needle will change...
Magnetic Field. I have no idea how to solve these questions, please help!!!! MAGNETIC FIELDS SUMMARY...
Magnetic Field. I have no idea how to solve these questions,
please help!!!!
MAGNETIC FIELDS SUMMARY You will measure how the magnetic field, B, produced by a coil varies with the current, I, in the coil. From your measurements, you w calculate the permeability constant Ho. Lastly you w use a magnet to induce a voltage in the coil. THEORY The magnetic field Batthe center of a circular coil (solenoid) of radius R with N turns that carries a current...
I need the answers to these ten questions. I have attached them
below. Please answer all of them. Thank you so much in advance!
If a rod is moving at a velocity equal to 1/2 the speed of light parallel to its length, what will a stationary observer observe about its length? O The length of the rod will become exactly half of its original value. O The length of the rod remains the same. The length of the rod...
Please answer the problem below for all parts . Please show all
work and write clearly. Thanks.
(a) (0) What is the difference between an autotransformer and a conventional transformer? 2. (ii) Why are high-impedance transformer used in electric toys? (b) Three single-phase transformers each rated at 150 kVA, 7200 V/600 V, 60 Hz, are connected in wye-delta on a 12470 V, 3-phase line. If the load is 450 kVA, calculate the followings: (i) The current flowing in the incoming...
Can you help me solve this problem and show the steps?
The local transformer shown below provides the last voltage stepdown in a power distribution system. A common sight on utility poles in residential areas, it is a single-phase transformer that typically has a 13.8-kV rms line to neutral on its primary coil, and a center tap secondary coil provides both 120 V rms and 240 V rms to service several residences. A typical example of this transformer is shown...
Please answer all the questions, thank you! It is a important
homework for me! I will like you answer if correct!
For the questions on this page, assume that that an induction motor is rated to deliver 10kW (approximately 13.3HP} when operated at 240VRMS 60Hz. The motor has a lagging power factor of 0.8. The building electrical service only supplies 208VRMs, so the motor can not be connected directly to the electric service. An ideal transformer is used to create...
I
need help with all of these questions because they are related to
one question. Please show all working so I fully understand.
Answers:
2a) e = - d(N*magneticFlux) / dt
2b) I) 98 % reached in 0.144 ms
2b) ii) Max energy = 1.84 x 10^-5 J
c) i) Ns = 10 or 10.5 turns
c) ii) Rl= 500 kohm, ip= 2.08 mA
2. Write the equation for the voltage induced in a coil by a changing magnetic field....
All of them
11) 11) The coil of a generator is rotated twice as fast keeping all other factors constant. What happens to the value of the maximum induced emf? A) It is increased by a factor of 4. B) It stays the same. C) It is reduced by a factor of 2 D) It is increased by a factor of 2 E) It is reduced by a factor of 4. 12) The primary codl of a transformer has 100...
QUESTION 13 speed of 500 m/s, what should the magnitude of the electric field be? An unknown charged particle is fired into a velocity selector. The magnetic field in the velocity selector is 1.2 T. If we would like to select for a 3. 417 NC b.333 N/C C. 480 N/C - d. 600 N/C QUESTION 14 A long solenoid has 150 turns per cm and carries a current of 400 mA. What is the magnetic field inside the solenoid?...
Write neat please. Show step by step please. Read
instructions carefully. do all problems please. double check your
work. Box in answer please. Thank you
Question 37 1 pts Compared to a single lamp connected to a battery, two identical lamps connected in series to the same battery will carry less current. the same current. O more current. Question 38 1 pts If a compass is moved from the northern hemisphere to the southern hemisphere, its magnetic needle will change...
Magnetic Field. I have no idea how to solve these questions,
please help!!!!
MAGNETIC FIELDS SUMMARY You will measure how the magnetic field, B, produced by a coil varies with the current, I, in the coil. From your measurements, you w calculate the permeability constant Ho. Lastly you w use a magnet to induce a voltage in the coil. THEORY The magnetic field Batthe center of a circular coil (solenoid) of radius R with N turns that carries a current...
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