A coil of 10.0 turns is in the shape of an ellipse havinga major axis of 10.0 cm and a minor axis of 4.00 cm. Thecoil rotates at 100. rpm in a region in which the magnitudeof Earth’s magnetic field is 55.0 µT. What is the maximumvoltage induced in the coil if the axis of rotation of the coilis along its major axis and is aligned (a) perpendicular toEarth’s magnetic field and (b) parallel to Earth’s magneticfield? Note: The area of an ellipse is given by A = πab, wherea is the length of the semimajor axis and b is the length of thesemiminor axis.

Q: In a solenoid of length 1 = 10 cm with 3707 turns per meter the current creates the field B = 70 μT.…

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Q: A circular electric generator coil with 113 loops has a radius of 0.05 meter and is in a uniform…

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Q: A 1.70 m length of wire is held in an east–west direction and moves horizontally to the north with a…

A: Given data: Length of wire is, L=1.70 m. Speed of wire is, v=14.8 m/s. Vertical component of Earth's…

Q: A long piece of wire of mass 0.086kg and total length of 4.43m is used to make a square coil with 63…

A: The coil is in equilibrium when the magnetic torque (τmagnetic) equals the gravitational torque…

Q: To construct a nonmechanical water meter, a 0.470 T magnetic field is placed across the supply water…

A: (a)Given∗The magnetic field supply to water pipe is B=0.470T∗ the Hallvoltage is ε=55mV…

Q: A cube made up of a material with relative permeability of 1,12 is in a uniform magnetic field with…

A: Given data, Relative permeability μr=1.12. Permeability of free space μ0=4π×10-7. Magnetic flux…

Q: What is the peak emf (in kV) generated by a 0.260 m radius, 520-turn coil that is rotated one-fourth…

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Q: constant electric flux of 1800 Volt-meters passes through the center of a loop of wire whose…

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Q: Magnets carrying very large currentsare used to produce the uniform, large-magnitude magnetic…

A: Given:-            Magnetic flux                           ϕB = μ0InAPlugn = NLϕB =μ0InA L L is…

Q: wire loop with a resistance of 2.5 ohms and a radius of 0.255m is places in a magnetic field that…

A: Given resistance of wire = 2.5 ohms radius of wire =  0.255 m  B(t)=0.25e^(-.5t) We have to…

Q: To construct a nonmechanical water meter, a 0.500-T magnetic field is placed across the supply water…

A: (a)   Write the expression for the relation between the electric field and the magnetic field, and…

Q: A very long, hollow cylindrical coil with a cross-sectional area of 70 cm2 and the number of turns…

A: Calculate the magnetic field produced by the cylindrical coil. B=μ0ni=4π×10-7 H/m×4500/m×5 A=0.0282…

Q: What is the magnetic induction at the Yentre of a T.G. coil of 50 turns of average radius 10 cm,…

A: We have given Number of turns N = 50  Radius r = 10 cm               r = 0.1 m  Current i = 0.35 A…

Q: A football quarterback, to obtain good grades while strengthening his throwing arm, is asked to…

A: when a coil of N turn is rotated in a magnetic field then EMF generated in the coil is expressed as…

Q: a) By using the Biot and Savart Law, i.e. dB Hoids sin 0 4t r² written with the familiar notation,…

A: Biot-Savart's law gives the magnetic field produced due to a current carrying length element as…

Q: A guitar's steel string vibrates (see figure below). The component of magnetic field perpendicular…

A: Given: Magnetic field perpendicular to area B=50+3.20 sin1046πt (in mT) , Number of turns N=26,…

Q: Considerable scientific work is currently under way todetermine whether weak oscillating magnetic…

A: Calculate the maximum emf as follows,

Q: A coil having an area 2m² is placed in a magnetic field which changes from 1Wb/m² to 4Wb/m² in an…

A: Given: Area, A= 2 m2change in time, ∆t= 2 sec

Q: The magnitude of the applied magnetic field in an MRI machine is 2.20 T at the patient's head. The…

A: Given data- dBdh=0.05 T/mat the head, B=2.20 TLarmor frequency is given by,f=e4πmBwhere,B=magnetic…

Q: A 50-turn coil with a radius of 11.0 cm is mounted so the coil's axis can be oriented in any…

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Q: Tthe length of a moving conductor L=0.25m (you may assume that this is the distance from “rail to…

A: Given that:- Length of moving conductor=L=0.25m

Q: The magnetic field intensity in a toroidal coil is NI 2лr H = Calculate the divergence of the field…

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Q: he world’s strongest magnet can produce a steady field of 45 T. If a circular wire loop of radius 10…

A: Write the given values of this problem. B=45 TR=10 cm

Q: A 65 turn coil of wire creates a circular area of 7.74 cm2. If a magnetic field of 14.74 T hits this…

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Q: A 0.220 m radius, 525 turn coil is rotated one fourth of a revolution in 4.17 ms, orginally having…

A: Radius of coil r = 0.220 m Number of turns N = 525 Time ∆t = 4.17 ms = 4.17×10-3 s Induced emf ε =…

Q: An MRI scanner is based on a solenoid magnetthat produces a large magnetic field. The magnetic field…

A: The speed of the technician, v=0.80 m/s   The distance from the scanner, d=1.0 m   The initial…

Q: (a) An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…

A: a) The Faraday’s and Lenz’s Law, The magnetic flux,

Q: Suppose a 20-turn coil lies in the plane of a page in a uniform magnetic field of 1.5 T that is…

A: Concept: Given: Number of turns (N)=20Magnetic Field (B)=1.5 TOriginal Area=0.50 m2And it is…

Q: A square, single turn coil of length 0.02-m is placed with its plane perpendicular to a constant…

A: length (l) = 0.02 m emf induced (E) = 18 mV = 0.018 Vrate of decrease of magnetic field = dAdt = 0.1…

Q: Consider a cylindrical solenoid with a radius of 4.00 cm and 600 turns wrapped over a length of 5.0…

A: Given :       A cylindrical solenoid with                        radius, r = 4 cm = 4 x 10-2 m…

Q: A solenoid has 560 closely spaced turns, a length of 12.0 cm, a radius of 3.00 cm, and carries a…

A: Given,Total Number of turns, N=560Length of the solenoid, l=12.0 cml=0.12mRadius of the solenoid,…

Q: A 230-turn coil lies in the plane of the page in a uniform magnetic field of strength 4.80 T. The…

A: Given that,Number of turns : N = 230 turns Magnetic field : B = 4.80 T              Area : A = 0.125…

Q: Find the emf voltage generated at the terminals of a 25 turns square coil of area 0.4m centered at…

A: given, number of turns N=25area of square coil =0.4m2side of square coil=0.2mB=30cos6xcos(2π103t)az

Q: A flashlight can be made that is powered by the inducedcurrent from a magnet moving through a coil…

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Q: In a solenoid of length 1 = 10 cm with 1941 turns per meter the current creates the field B = 70 µT.…

A: Length of solenoid l= 0.10 m number of turn N= 1941 per meter number of turns in l    = 1941  x 0.10…

Q: A square coil of side 4 cm and 200 windings initially lies perpendicular to a magnetic field of 4.0T…

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Q: What is the peak emf (in kV) generated by a 0.230 m radius, 520-turn coil that is rotated one-fourth…

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Q: What EMF would be induced for a Canada goose with a wingspread of 1.5 m flying 10 m/s in a region…

A: The motional emf is given by  e = B v L

Q: . A rotating electrical part of a trimmer machine with 200 turns of square wire with side 18 cm,…

A: Given information: Here, N is the number of turns, a is the square’s side and dB is the change in…

Q: A 0.220 m radius, 506 turn coil is rotated one-fourth of a revolution in 4.17 ms, originally having…

A: SOlution: given that r = 0.22 m N = 506 t = 4.17 ms emf = 10000 V

Q: At a certain location, the Earth’s magnetic field has a magnitude of 5.4 * 10-5T and points in a…

A: The angle of the field relative to the normal is θ=90°-68°=22° The area of the desk is A=l×b The…

Q: What is the induced current (in mA) in the loop of wire over this time?

A: From the faraday's law we know ,                          If magnetic field B and area A then ,…

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.