Q. 4. A coil surrounds a flux of 7 m Wb produced by a permanent magnet. The magnet is suddenly withdrawy causing the flux inside the coil to drop uniformly to 3 mWb in 4/10 of a second, This movement induced a voltage difference of 5V. How many tuns is the coil? N = ? At = 4/10 s Solution: E=5V

Q. 4. A coil surrounds a flux of 7 m Wb produced by a permanent magnet. The magnet is suddenly withdrawy causing the flux inside the coil to drop uniformly to 3 mWb in 4/10 of a second, This movement induced a voltage difference of 5V. How many tuns is the coil? N = ? At = 4/10 s Solution: E=5V

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter8: Basic Electric Motors

Section: Chapter Questions

Problem 3RQ

See similar textbooks

Related questions

Q: Two identical coils A and B having 1000 turns and wound on a common magnetic core. 60 % of the flux…

Q: A coil that con sists of 450 windings is wound around a bakelite rin g. The mean diameter of the…

A: We are authorized to answer only 1 question at a time since you have not mentioned which question…

Q: A magnetic circuit has a length of 100 cm and cross-sectional area of 5 square cm. The total flux is…

A: Here, we have a magnetic circuit, for which we have to calculate the magnetic strength. The…

Q: Magnetic field force lines created by the primary coil in transformers pass through the secondary…

A: A primary voltage produces an alternating current through the primary coil. Due to this primary coil…

Q: Problem 3 A and B are two coils close. A has 1200 turns, and B has 1000 turns. When a current of…

A: In this question we need to find a self inductance of coil A and mutual inductance of coil

Q: A coil is used for producing a flux of 0.24 x 10 webers. If the current flowing in the coil is 2 amp…

A: Given: Coil producing flux, φ=0.24×10-3 Wb. Current flowing in coil, I=2 amp. Coil turns, N=200.

Q: The flux linking to 200 turns coil changes from 2 mWb to 5 mWb in 1ms to 3 ms. Determine the induced…

Q: 10. A potential difference of 250 V is applied to a field winding at 15-C and the current is 5 A.…

A: First Calculate the resistance of winding at 15°C: R15=2505R15=50 Ω Now Calculate the resistance of…

Q: magnetic coil produces 100,000 maxwell with 2000 turns and with a current of a 2A. The current is…

Q: Two identical coils A and B having 1000 turns and wound on a common magnetic core. 60% of the flux…

A: Given:Number of turns in coil A=1000Number of turns in coil B=100060% of the flux is linked…

Q: A flat circular coil having 50 loops of wire on in has a diameter of 48 cm. What current must flow…

A: Given : A flat circular coil No of loops , N = 50 Diameter of coil = 48 cm , Radius = 0.24 m Flux…

Q: rectangular coil of wire has a length of 3 cm and a width of 4 cm. It is in a 0.004 T magnetic…

Q: A ferromagnetic core in the shape of a doughnut has a cross-sectional area of 0.11 m2 and an average…

A: The reluctance of the magnetic circuit is defined as:

Q: A magnetic coil with 2000 turns produces 1 mWb of flux when it carries a current of 2 A. The current…

A: Given,N=2000 turnsϕ=1mWb=0.001 WbI=2 AFlux collapses in t=10 ms= 0.01 sAverage voltage that will…

Q: A 100-turn coil wound on a magnetic core is found to have an inductance of 200 mH. What inductance…

A: Given data, The value of number of turns N1 = 100. The value of number of turns N2 = 200. The value…

Q: A surface y = 4 carries current 4A/m along a, ,while an infinitely long filamentary wire carries a…

A: a) The magnetic field flux intensity due to surface current is H1¯=K¯2×n^=4z^2×y^=2(-x^)=-2x^ A/m.

Q: If a voltage with RMS values of 220 and freq of 60 Hz is applied to a coil with 250 turns, find…

Q: A toroidal coil, with a circular cross-sectional area of 0.2m2. The coil inductance is 0.28H. The…

A: Given: A=0.2 m2L=0.28 HN=500 turnsψ=498

Q: The flux through a toroidal magnetic material is 6 µWb, and the magnetic field intensity is 12 A/m.…

A: 19098Explanation:Step 1:

Q: coll consist of 750 turns. A current of 10A in the coil gives a rise to a magnetic flux of 1200 Wb.…

A: Given, Number of turns (N)=750 Current (I)= 10 A Magnetic flux = 1200 wb

Q: flux through each turn of a 100 turn coil is (t3-2t) mWb, where t is in seconds. Find the magnitude…

A: In this question flux is given through coil..We have to find magnitude of induced emf..

Q: The flux per pole of a two-pole generator is 7.5x10^-5 wb. A coil of 600 turns rotates in this…

A: Given Data:-ϕ=7.5×10-5 wbZ=600 turnstime take from maximum to one minimum =0.0187 sec

Q: An air core toroidal coil has 120 turns, the length is 12 cm and 12 sq. cm in area What is the…

Q: 3- A magnetic core with an air gap is shown in below Figure. The depth of the core is 3 cm, the…

A: Reluctance Reluctance is a property of magnetic material which opposes the flux in the magnetic…

Q: Two coils A and B are kept in parallel planes, such that 70% of the flux produced by coil A links…

A: We have two coils coil A and coil B in parallel planes. KA = ФAФB = 0.7 Number of turns(NA) = 10,000…

Q: A and B are two coils in close proximity. A has 1200 turns and B has 1000 turns. When a current of…

A: Given that Number of turns (NA) = 1200 Number of turns (NB) = 1000 Current I = 0.8A Flux φA = 100…

Q: 1. Two identical coils A and B having 1000 turns and wound on a common magnetic core. 60 % of the…

A: It is given that: NA=1000 TurnsNB=1000 Turnsflux linked with other coil=K=60100=0.6Current in coil…

Q: A and B are two coils close. A has 1200 turns, and B has 1000 turns. When a current of 0.8A flows in…

A: Number of turns (NA) = 1200 Number of turns (NB) = 1000 Current I = 0.8A Flux φA = 100 µWb =…

Q: If a current pass through an inductive, .magnetic energy will store in the coil True False

A: Inductors are used to store energy in form of magnetic field. When current is passed through the…

Q: The field winding of a DC generator is wound with 900 turns and has a resistance of 50 ohm. If the…

A: Given 900 turns R=50ohms V=240V DC Flux=4mWb

Q: Please answer this NEATLY, COMPLETELY, and CORRECTLY for an UPVOTE. The coil of a generator has an…

A: In this question we will find temperature of coil with given resistance value...

Q: 7. A coil having a resistance of 20 ohms and an inductance of 0.75 henry is connected in series with…

A: In this question, We need to determine the rate of current change and power delivered by the…

Concept explainers

Magnetic Moment

The magnetic moment is defined as the alignment of a magnet and its strength when the magnet is creating a magnetic field. There are number of examples of the magnetic moment, few are a current carrying conductor in the form of coil, elements at microscopic levels like electrons and many more.

Question

Q. 4. A coil surrounds a flux of 7 m Wb produced by a permanent magnet. The magnet is
suddenly withdrawy causing the flux inside the coil to drop uniformly to 3 mWb in 4/10
of a second, This movement induced a voltage difference of 5V. How many turns is the
coil?
N
N
N = ?
At = 4/10 s
Solution:
E=5V

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.

Similar questions

A magnetic coil produces 100,000 maxwell with 2000 turns and with a current of a 2A. The current is cut-off and the flux collapse in 0.01 sec. What is the average voltage that will appear across the coil?
A rectangular coil of wire has a length of 3 cm and a width of 4 cm. It is in a 0.004 T magnetic field. What is the magnetic flux through the coil if the face of the coil is parallel to the B-field lines? What is the flux if the angle between the face of the coil and the magnetic field is 75°?
The flux linking to 200 turns coil changes from 2 mWb to 5 mWb in 1ms to 3 ms. Determine the induced voltage.* 300 V 400 V 500 V 600 V What is the magnetomotive force created when 5 A current flows through 300 turns coil? * 1000 At 2000 At 1200 At 1500 At
If a current pass through an inductive, .magnetic energy will store in the coil True O False O
3- A magnetic core with an air gap is shown in below Figure. The depth of the core is 3 cm, the length of the air gap in the core is 4 cm, and the number of turns on the coil is 100. How much current is required to produce total flux of 0.00052 Weber? (H= 2000, Ho=4.n107). 6 cm 20 cm N = 100 4 cm = lg 6 cm 6 cm 18 cm 12 cm 18 cm 6 ст Depth = 3 cm
The flux through a toroidal magnetic material is 6 µWb, and the magnetic field intensity is 12 A/m. The length of the magnetic path is 0.6 m, and it's effective cross-sectional area is 1.5x 10¯4m². Determine the coil's mmf in Amp Give your answers correct to 1 decimal places. Answer:
A magnetic ring has reluctance of 1.675 × 10⁰ AT weber. The flux to be produced by the coil is 800 x 10 webers, then the AT required for the m.m.f. will be
A coil is used for producing a flux of 0.24 x 10 webers. If the current flowing in the coil is 2 amp and the coil has 200 turns. the total m.m.f required to produce the flux will be
If a voltage with RMS values of 220 and freq of 60 Hz is applied to a coil with 250 turns, find maximum flux? ( 1500, L = 50 cm, and A = 15 CM², perhaps it is fr a rainy day and temperature is 75!) = 0.0333 3.333 0.333 0.0033
How many turns are there in the coil
I= 1 A Find the total flux Show as the equivalent magnetic cct Permeability is 1500 Find the total flux
The flux per pole of a two-pole generator is 7.5x10^-5 wb. A coil of 600 turns rotates in this magnetic field. It takes 0.0187 sec. for the coil to rotate from a point of maximum flux to one of minimum flux. Find the induced voltage.