Suppose we have a small circular coil of wire that has 400 turns of wire wound in the form of a loop 4 centimeters in diameter. When this coil is connected to a battery, the magnetic field it creates deflects a compass needle that is 20 centimeters away along the coil's axis by an angle of 35 degrees from north, as shown in the drawing. (The coil's plane is vertical, perpendicular to the plane of the drawing.) Assume that the horizontal part of the earth's magnetic field at our location has a magnitude of |Bearth| = 25 microtesla. What current flows in the coil? (Hint: the distant field of a loop is like that of a dipole.)

Q: A 25 cm rod moves at 5.8 m/s in a plane perpendicular to a magnetic field of strength 0.20 T. The…

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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: As shown in the figure below, two long parallel wires (1 and 2) carry currents of I₁ y P = 3.02 A…

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Q: The figure below shows twe parallel conducting rails, oriented vertically, connected to each other…

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Q: A 1.5 kg copper rod rests on two horizontal rails (see figure below) 2.4 m apart and carries a…

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Q: The current in the long, straight wire is I = 10.0 A and the wire lies in the plane of the…

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Q: resistance R. A conducting metal rod is oriented horizontally and is in contact with the two…

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Q: long, straight, and closely-wound solenoid shown in the figure below has length L = 0.580 m, 450…

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Q: In each of the figures below, a uniform magnetic field B points in the +x-direction. The magnitude…

A: given B = 2.25T A = 0.3252 m2 A = 0.1056 m2 to claculate- magnetic flux

Q: 1.85 kg is suspended vertically at rest by an insulating string connected to a circuit partially…

A: Answer Given:mass, m = 1.85 kgmagnetic field, B = 4 TLength, l = 0.350 m

Q: . The magnetic force on the charge is

A: Please see the attached image for solution

Q: The conducting rod shown in the figure has length L and is being pulled along horizontal,…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: In the figure below, the current in the long, straight wire is I₁ = 8.80 A and the wire lies in the…

A: Given data, Currents, I1=8.8 AI2=10 A

Q: Two infinitely long wires are placed as shown in the figure on the right, with h = 120 A placed at x…

A: Given, current in wire 1 = 120 A current in wire 2 = 55.0 A and a = 15.0 cm

Q: Two long parallel wires, one with a semicircular bend of radius R, are oriented as shown in the…

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Q: You have designed and constructed a solenoid to produce a magnetic field equal in magnitude to that…

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Q: A copper rod 0.175 m long and with a mass of 0.0529 kg is suspended from two thin, flexible wires,…

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Q: Consider the infinite sheet of current shown in the figures. The sheet is composed of straight,…

A: Given an infinite sheet of current  The sheet is composed of straight, parallel wires separated by…

Q: An infinitely long wire carrying a current of I = 2.95 A is bent into the shape shown in the figure.…

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Q: A rectangular coil with resistance R=6.00 Ω has N=240 turns, each of length and width w=7.00 cm, as…

A: Given :           Resistance of the coil, R = 6 Ω           Number of turns, N = 240 turns…

Q: A square coil of wire of side 3.50 cm is placed in a uniform magnetic field of magnitude 2.25 T…

A: Calculate the magnitude of the average induced emf in the coil.…

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: In the figure below, the current in the long, straight wire is I₁ = 7.00 A and the wire lies in the…

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Q: A loop of a wire has the shape shown in the drawing. The top part of the wire is bent into a…

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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: A rectangular current loop as shown in the figure has dimensions a = 0.18 m and b=0.10 m. Current I…

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Q: Each of two long straight parallel wires 5 cm apart carries a current of 100 A. The figure shows a…

A: We redraw the situation with proper lengths and directions for magnetic field at P.

Q: The diagram below depicts a rectangular wire loop of width a = 17.5 cm and height b = 7.95 cm, that…

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Q: The wire in the drawing carries a current of 13 A. Suppose that a second long, straight wire is…

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Q: Two long, parallel wires carry currents of I, = 2.55 A and I, = 4.90 A in the directions indicated…

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Q: A pair of parallel conducting rails that are L = 22 cm apart lies at right angles to a uniform…

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Q: In each of the figures below, a uniform magnetic field B points in the +x-direction. The magnitude…

A: See below

Q: A rectangular coil, with corners labeled ABCD, has length L = 8.00 cm and width w = 4.00 cm. It is…

A: Given: L = 8.0 cm W = 4.0 cm strength of magnetic field, B = 4.0 × 10-4 T Current through the coil,…

Q: A conducting rod spans a gap of length L = 0.234 m and acts as the fourth side of a rectangular…

A: The question asked has nothing to do with the electromagnetic parameters given in the question.…

Q: Young domestic chickens have the ability to orient themselves in the earth’s magnetic field.…

A: Given: Turns in both coils n = 43. Radius of both the coils r = 1 m. Magnitude of Earth’s field B =…

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.