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 μTμT, but at any particular location it may be a bit more or less than this. A 1.00-mm-diameter current loop with 200 turns of wire is adjusted to carry a current of 0.191 AA ; 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: Suppose you wish to measure the current in a wire.  You have a device that can measure the strength…

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Q: A hollow cylindrical conductor has an inner radius a = 0.6 cm and an outer radius b = 1.8 cm. The…

A: Detailed explanation:Given:Inner radius a=0.6cm=0.006mOuter radius b=1.8cm=0.018mTotal current…

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: Magnetic resonance imaging needs a magnetic field strength of 1.5 T. The solenoid is 1.8 m long and…

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Q: Below is a rectangle that is being pulled into a magnetic field as shown. The rectangle has a height…

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Q: An airplane with a total width of wings as 40 m, flies southbound at a location where the downward…

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Q: A length of copper wire carries a current of 11 A, uniformly distributed through its cross section.…

A: Given,Current I=11Awire diameter d=2.1mmradius r=2.12=1.05mm

Q: In an experiment designed to measure the Earth's magnetic field using the Hall effect, a copper bar…

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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: In one of NASA's space tether experiments, a 20.0 km-long conducting wire was deployed by the space…

A: Length of the wire, L=20km=20×103m Orbital speed, v=7.86×103m/s Magnetic field, B=1.51×10-5T

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

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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: A device called a railgun uses the magnetic force on currents to launch projectiles at very high…

A: Proper solution is provided given below:Explanation:Step 1: Finding current The current can be…

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: Below is a rectangle that is being pulled into a magnetic field as shown.  The rectangle has a…

A: GIVEN:- h=0.680 m, v=155m/s ,R=11.50 ohms, B=48mT Introduction:- We know that In motional…

Q: The slide generator in the figure below is in a uniform magnetic field of magnitude 0.0500 T. The…

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Q: AV = 36 mV battery is connected to a single turn loop of dimensions a = 15 cm by b = 8 cm has a…

A: Calculate the area of the loop. A=abA=(15 cm)(8 cm)A=120 cm2×(1 m100 cm)2A=1.20×10−2 m2

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: A 2.65 m segment of wire supplying current to the motor of a submerged submarine carries 1050 A and…

A: Given: Length of wire L = 2.65 m. Current in wire i = 1050 A Repulsive force felt by wire F = 4.4 N…

Q: A 65.1-cm-diameter coil consists of 20 turns of circular copper wire 8.67 mm in diameter. A uniform…

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Q: You want to build a giant solenoid of one layer of tightly-wrapped 12-gauge copper wire (diameter is…

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Q: A copper wire is 10.00 m long and has a cross-sectional area of 2.00 ✕ 10-4 m2. This wire forms a…

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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: he magnetic field perpendicular to a single 13.2-cm-diameter circular loop of copper wire decreases…

A: Given: The diameter of the copper loop is 13.2 cm = 0.132 m.…

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 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: A square loop whose sides are 9 cm long is made with copper wire of radius 5 mm, assuming…

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Q: Part (a) Consider a circle with a radius r and centered on the wire. Determine the magnitude of the…

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Q: A thin 30.0 cm long metal bar with a mas of 800 g rests on, but is not attached to, two metallic…

A: A magnetic field is the field of effect of moving charges, i.e., current. When a current flows in…

Q: 64.0 cm -➜ B In an experiment, a particle that has a mass of 6.80 x 10-27 kg enters a uniform and…

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Q: A conducting bar of length L = 0.40 m rotates in a counterclockwise direction with a constant…

A: Length of rod= 0.4 m Counterclock angular speed= 2 rad/s Magnetic Field = 7.5 T

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.