Find i) Total number of coils i) Turns per coil i) Commutator pitch
Q: Hence estimate the following transient parameters: Rise Time (s): Peak Time (s): 1% Settling Time…
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Q: 14 A. Assume the inductance of the coil is 10.5mH, having the flux 0.2mwb developed in the coil when…
A: Given Data: I = 6 A L = 10.5 mH flux = 0.2mWb
Q: When a current of 2A flows in a coil having 650 turns. If the coil inductance is 850 mH, the flux…
A: Given, Current, I= 2A Turns, N= 650 Inductance, L= 850 mH
Q: An electric current flows through a coil with an inductance of 6,7 mH. The graph shows the…
A: The solution is given below
Q: 4. An induction motor draws 4.5 A at a 0.75 lagging power factor from a 208V, 60 Hz source. a) What…
A: Only one question is to be answered according to bartleby policy.
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A: From the table the relative permeability for 4-79 permalloy, permeability μr is 40,000. The magnetic…
Q: 1. (1) Determine the T-equivalent circuit (La, Lb, Le) for the following magnetically couple coils.…
A: Since you have asked multiple questions, we will solve the first question for you. If you want to be…
Q: An electric generator contains a coil of 100 turns of wire, each forming a rectangular loop 50.0 cm…
A: Given: N=100 A=50cm×30cm=0.15 m2B=3.5 Tω=100 rev/min=100×2π60 rad/secR=100 Ω
Q: Two mutually coupled coils are shown in figure below. The inductances of coils are: L11= A, L11 B,…
A: Given mutually coupled coils shown Inductances of coil areL11=A,L22=BL12=L21=Ccosθi2=i0
Q: Two coils A and B having 1200 and 800 turns respectively are placed near to each other. 60% of the…
A: It is given that: Number of turns in coil A=NA=1200 TurnsNumber of turns in coil B=NB=800…
Q: i) What is Electromagnetic Induction (EMI)? Differentiate a transformer with a generator. ii)…
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Q: A current of 2.5 mA passes through a coil with 80 turns causes a flux of 200mw blinking with the…
A: Given values are =
Q: An air-core circular coil has 5000 turns. The inner and outer diameter are 20cm and 24cm,…
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Q: When a current of 2A flows in a coil having 750 turns. If the coil inductance is 600 mH, the flux…
A:
Q: The drawing below is an illustration of an electrical direct current engine that runs a far The…
A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…
Q: A magnetic field strength of 5000A/m is applied to a circular magnetic circuit of mean diameter 250…
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Q: The front pitch is the distance measured in number of slots between the front ends of the coil.…
A: "The front pitch is the distance measured in number of slots between the front ends of the coil"…
Q: Q1/A sinusoidal voltage is generated by 85 turn coil, of dimension 20 cm by 16 cm. The coil is…
A: We need to find out generated emf .
Q: A generating coil on a former 100mm long has 120 turns and rotates in a 1.4 T magnetic field.…
A: Given n=450 rev/minω=2πn60=2×3.14×45060=47.12 rad/sec Turns N=120 Magnetic field B=1.4 T Diameter…
Q: Two identical coils are wound on a ring-shaped iron core that has a relative permeability of 500.…
A: In this question we will find inductance and mutual inductance ...
Q: When a current of 4A flows in a coil having 550 turns. If the coil inductance is 800 mH, the flux…
A: Solution: The flux through an inductor is the self inductance of coil times the current through it.…
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A: Given : In this question they are discussing about the Electrodynamic meters . Generally…
Q: The drawing below is an illustration of an electrical direct current engine that runs a far The…
A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…
Q: Q1/A sinusoidal voltage is generated by 85 turn coil, of dimension 20 cm by 16 cm. The coil is…
A: We will find out generated emf .
Q: Q3 A three-phase induction motor has the following data: 50 hp and V440 and 50HZ operating at full…
A: first calculate total active and reactive power before and after compensation . reactive power…
Q: A coil has resistance of 5 ohm and capacitive reactance of 6 ohm . a) what is the impedance of…
A: Given: A coil has, Resistance, R=5 Ω Capacitive Reactance, XC=6 Ω
Q: 7. Calculate the coil inductance when a current of 4A in a coil of 800 turns produces a flux of…
A: (Q.7) Given, Current flows through a coil(I)= 4 A Number of turns (N)=800 Flux = 5 mWb
Q: A coil is in series with a 20 µF capacitor across a 230-V , 50-Hz supply. The current taken by the…
A: In this question, We need to calculate the value of inductance of the coil if power factor is…
Q: 6. A copper coil has a resistance of 200 ohms when its mean temperature is s 0 degree centigrade.…
A: Given: Resistance of copper coil at T0=0o C is R0=200 Ω. Temperature coefficient, α=0.04041 oC-1…
Q: A relay has a 500-turn coil that draws 50 mA rms when a 60-Hz voltage of 24 V rms is applied. Assume…
A: Given data: N=500IRMS=50 mA=502 mAVRMS=242 V The expression for the v(t) is given as, vt=Vmcosωt=242…
Q: A 2 pole 50 Hz, 13 kv, 200 MW alternator has moment of intertia 20000 kg-m2. What is the value of…
A: Given values are - Moment of inertiaJ=20000kg-m2RatingG=200MWf=50Hz
Q: . Determine whether the system is asymptotically stable for governed by the following difference…
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A: 1. COMMUTATED CAPACITOR TACHOMETER: This tachometer works by charging and discharging a capacitor in…
Q: 26. The emf induced in, a coil due to the changing current of another neighboring coil is called A.…
A: Choose the correct options The emf induced in a coil due to the changing current of another…
Q: https://matlab.mathworks.com/ Question 1 Which of the following best describes the average power…
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Q: Due to mutual inductance between two coils, there is an induced emf in one coil due to a change in…
A: Answer:True
Q: A coil with 12 turns is acted upon by flux given by (t)=2cos(2134t +56° ) + 3sin(4567t +22° )Wb.…
A: In this question, We need to determine the magnitude of the induced voltage? We know Emf e= N…
Q: The self-inductance of a coil whose number of turns (N=500) is (L=0.25H), so if 60% of the flux…
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Q: When a current of 2A flows in a coil having 500 turns. If the coil inductance is 900 mH, the flux…
A: Need to find flux linkage
Q: Faraday's law states that the polarity of induced voltage in a coil is in opposition to the current…
A: We need to tell about the given statement is true or false.
Q: the no-load current: a) Increased. b) Decreased. c) Remains the same. The self-inductance of an…
A: In this question, we have to write about effect of frequency on no load current and self inductance…
Q: 100 Hz ac circuit has a 300 ohm resistor, a 900 milli-henry inductor, and a capacitor all in series.…
A: inductive reactance=2×π×f×L where L is inductor. capacitive reactance=12×π×f×C. Z=R2+(XL-XC)2.
Q: quantities at any instant of time. Select one: True False
A: Alternating waves varies with time.
Q: The energy stored in an 1800 turns inductor is 10 Joules, if the inductance value is 4 H. Find (a)…
A: Energy stored =0.5 L×I2 Inductance=number of turns×flux current in coil. EMF =L×didt.
Q: Calculate the coil Inductance when a Current of 10 A in a coil of 1500 turns produces a flux of 15…
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Q: Find time constant, rise and settling time. T(s) = 2 / (s+2)
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- A transformer has primary and secondary turns of 1250 and 125 respectively. It has core cross-sectionof 36 cm2 and its rms flux density is to be limited to 1.4 T (to prevent core saturation). Whatmaximum 50 Hz voltage can be applied on the primary side and the corresponding open-circuitsecondary voltage?The core has a mean length of 150 cm and its relative permeability can be assumed to be 8000. Whatwould be the rms exciting current when the transformer’s primary winding is excited at a voltage ascalculated above? Also calculate the magnetizing susceptance as seen from primary and secondarysides.If the transformer were to be excited at 60 Hz, 1. What should be the maximum primary voltage for thecore flux density limit not to be exceeded? 2. What would be the magnetizing susceptance as seen oneach side in this case?A three-winding transformer is connected to an AC voltage source as shown in the figure. The number of turns is as follows: N₁ = 100, N₂ = 50, N3 = 50. If the magnetizing current is neglected, and the currents in two windings on secondary side are 2230° and 22150°, then what is the value of the primary current in Ampere? I 0000000000- N₁ № ₂ Z 00000 00000 Z N3 H I₁₂ I₁₂₁ ¹3What are the similarities and dissimilarities of a 3-phase induction motor and a transformer?
- For a four pole, 16 slot armature with two coil-side/slot having wave connected progressive winding has single turn coils has simplex winding. The number of current paths is?construct an winding diagram with -4 poles-26 conductors-double layer-simplex wave winding, 2 brushes4. The portion of the flux that goes through one of the transformer coils but not the other one is called. A) Average flux B) Mutual flux D) Leakage flux C) Total flux 5. The fundamental component of the magnetization current ------- the voltage applied to the core by ------ 90°: A) Lags, 45° B) Leads, 45°. D). Leads, 90°. C) Lags, 90°. 6. The ----- are resistive heating losses in the core of the transformer. A) Hysteresis losses. B) Copper losses. C) Leakage flux losses. D) Eddy current losses. 7. The total rotational losses of an induction motor are a combination of: A) Friction losses B) Windage losses. C) Core losses. D) Stray losses. 8. Induction motors are now the preferred A) absence of brushes. choice for industrial motors due to B) Small size. C) Less control requirements. D) rugged construction. 9. For an induction motor, if the synchronous speed is 1800 r/m, and the rotor speed 180rad/sec, then the slip will be: A) 5.5 % C) 6% B) 4.5% D) 4% 10. The lower the speed of an…
- For 6 polar D.C machine armature has 36 number of slots and the type of winding is a double layer simplex lap winding. a. How many coils are present? b. What is the coil span in terms of number of slots? c. If each coil has 4 turns, then what is the total number of armature conductors presents? d. How many parallel paths will be their in the armature? e. Altogether how many brushes will be their?Armature winding of an alternator can also be described asfill inthe blank : field winding has large numberofturns of thin copper wire. a. Shunt b. Series c. Compound d. separately excited
- 1- The compole is used to 2- A 4-pole wave winding machine has ------ magnetic circuit. 3- A commutator pitch for the duplex wave winding is equal to - 4- A 2-pole triplex lap winding will have parallel paths. 5- A 6-pole lap wound generator has 900 conductors. The e.mf induced per one turn being 3V. the generated voltage of the grnerator is ( 6-A 10kW, 250 V shunt generator has armature and field resistance of 0.2 and 502 respectively. Then the generated voltage is andIs this armature winding a progressive or a retro-progressive winding? W N Select one: 2 B 4' O a. Both O b. Progressive OC. Neither O d. Retro-progressive B SThe core of a transformer operating at 50 Hz has an eddy current loss of 100 W/m3 and the corelaminations have a thickness of 0.50 mm. The core is redesigned so as to operate with the same eddycurrent loss but at a different voltage and at a frequency of 250 Hz. Assuming that at the new voltage themaximum flux density is one-third of its original value and the resistivity of the core remains unaltered,determine the necessary new thickness of the laminations. Clear and detailed solution.