For a particular scientific experiment, it is important to be completely isolated from any magnetic field, including the earth’s field. The earth’s field is approximately 50 μT, but at any particular location it may be a bit more or less than this. A 1.00-m-diameter current loop with 200 turns of wire is adjusted to carry a current of 0.215 A; at this current, the coil’s field at the center is exactly equal to the earth’s field in magnitude but opposite in direction, so that the total field at the center of the coil is zero. What is the strength of the earth’s magnetic field at this location?

Q: Sodium ions (Na*) move at 0.857 m/s through a bloodstream in the arm of a person standing near a…

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Q: We want to use the Earth's magnetic field to apply a torque on a current loop. Suppose the Earth's…

A: We are given a circular coil  of known radius. We are also given the torque acting on it when kept…

Q: At the equator, the earth's field is essentially horizontal; near the north pole, it is nearly…

A: Let's use the magnetic field formula in terms of the current, radius, and number of turns

Q: In a physics laboratory experiment, a coil with 250 turns enclosing an area of 12.9 cm² is rotated…

A: (a)magnitude of electric flux through the coil before it is rotatedB is magnetic field , A is area,…

Q: The figure below shows a cross section of a long thin ribbon of width w = 2.98 cm that is carrying a…

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Q: A region of space contains a magnetic field of 500 G and an electric field of 3 × 106 N/C. The…

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Q: A solenoid of 36 turns and area 20 cm2 has its ends connected together though a resistance of 5…

A: Using Faraday's law of electromagnetic induction Where e = emf induced, t = time,  = Magnetic flux

Q: A coil has 240 turns enclosing an area of 12.2 cm2. In a physics laboratory experiment, the coil is…

A: Given, Number of turns in the coil, N = 240  area of coil,  A = 12.2 cm2 Time interval, t = 0.049 s…

Q: A solenoid of 69 turns and area 20 cm2 has its ends connected together though a resistance of 5…

A: Given value--- No. of turns = 69. Area = 20 cm2.  Resistance = 5 Ohm. Magnetic field = 3 × 10-2 T.…

Q: G The figure shows a metallic block, with its faces parallel to coordinate axes. The block is in a…

A: The answer to the problem is given below

Q: Part A What is the total magnitude of the magnetic flux ( Pinitial) through the coils before they…

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Q: A V = 30 mV battery is connected to a single turn loop of dimensions a = 13 cm by b = 12.5 cm has a…

A: The given values are, V=30 mV=0.030 VA=a×b=13 cm×12.5 cm=13×10-2 m×12.5×10-2 m=162.5×10-4 m2R=15.5…

Q: A piece of copper wire has a resistance per unit length of 4.53 x 10^-3 Ohms/m. The wire is wound…

A: Magnetic field strength at the center of coil having N number of turns is given by as B= u°NI/(2r)

Q: For a particular scientific experiment, it is important to be completely isolated from any magnetic…

A: Given:-  The number of turns in a current loop is N = 200  The diameter of the current loop is d = 1…

Q: For a particular scientific experiment, it is important to be completely isolated from any magnetic…

A: Given: The diameter of the loop is 1 mm. The number of turns of the loop is 200. The current in the…

Q: The figure below shows a cross section of a long thin ribbon of width w = 5.85 cm that is carrying a…

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Q: A 18.8 g wire of length 64.8 cm is suspended by a pair of flexible leads in a uniform magnetic field…

A: (a) There should be an upward magnetic force in order to cancel out the tension ( tension is equal…

Q: solenoid of 35 turns and area 20 cm2 has its ends connected together though a resistance of 5 Ohms.…

A: Given  number of turns N = 35  area A = 20 cm2 = 20 × 10-4 m2  resistance R = 5 ohm  magnetic flux…

Q: Suppose you wish to measure the current in a wire. You have a device that can measure the strength…

A: Given:-  The  magnitude of the magnetic field is B = 1.72 μ T  The magnetic field B is r = 0.98 m…

Q: An air-filled solenoid has a diameter 10.5 cm and a length 5.58 cm, and it has 653 turns of wire. If…

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Q: At the equator, the earth’s field is essentially horizontal; near the north pole, it is nearly…

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Q: Two long straight wires are parallel and 6.3 cm apart. They are to carry equal currents such that…

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Q: You are to build an electromagnet with 0.643-mm- diameter copper wire. To create the required…

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Q: In Figure P19.21, the cube is 43.0 cm on each edge. Four straight segments of wire -- ab, bc, cd,…

A: The objective of the question is to determine the magnitude and direction of the magnetic force on…

Q: In a physics laboratory experiment, a coil with 160 turns enclosing an area of 13.4 cm? is rotated…

A: According to Faraday's law of electromagnetic induction The induced emf in the coil is given by…

Q: The figure below shows a piece of insulated wire formed into the shape of a figure eight. You may…

A: r1=3 cm=0.03 mr2=8 cm=0.08 mλ=9 Ω/mdBdt=1.7 T/s

Q: Certain experiments must be performed in the absence of any magnetic fields. Suppose such an…

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Q: You’re an electrical engineer designing an alternator (the gener-ator that charges a car’s battery).…

A: Given Diameter =D=10 cm radius = r=5 cm emf induced = 14 rpm =N=1200    ω=2πN60 =…

Q: A piece of copper wire has a resistance per unit length of 5.12 × 10-3/m. The wire is wound into a…

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Q: A piece of copper wire has a resistance per unit length of 5.40 × 10³/m. The wire is wound into a…

A: Write the provided data.Here,  is the resistance per unit length, r is the radius, and V is the…

Q: A baseball bat is swung with an angular velocity of 500°/s and has a radius of 1.2m. What is the…

A: Angular  velocityω=500°/s=500×0.0175 rad/s=8.75 rad/s Radius r= 1.2 m

Q: A loop of wire moves with a velocity of 3.0 m/sm/s through a magnetic field whose strength decreases…

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Q: In one of NASA's space tether experiments, a 20.0 km long conducting wire was deployed as a power…

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Q: The above figure shows the cross sections of two wires carrying equal magnitude currents of 10 A but…

A: Magnitude of currents are I1=I2=10 A Distance between the wires are d= 0.5 m

Q: A coil has 250 turns enclosing an area of 11.8 cm2 . In a physics laboratory experiment, the coil is…

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Q: The figure below shows a cross section of a long thin ribbon of width w = 5.72 cm that is carrying a…

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Q: During a transcranial magnetic stimulation (TMS) treatment, a magnetic field, typically of magnitude…

A: The objective of this question is to calculate the magnitude of the average induced electromotive…

Q: he magnetic flux though a coil of wire that has 70 turns is changing at a rate of 0.030 Tm^2/s. What…

A: According to lenz's law magnitude of induced emf = Ndϕmdt , where N is number of loop and dϕmdt is…

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.