Experiments carried out on the television show Mythbusters determined that a magnetic field of 1000gauss is needed to corrupt the information on a credit card’s magnetic strip. (They also busted the myth that a credit card can bedemagnetized by an electric eel or an eelskin wallet.) Suppose along, straight wire carries a current of 3.5 A. How close can a creditcard be held to this wire without damaging its magnetic strip?

Q: An α-particle has a charge equivalent to 2 protons and a mass of 6.64 × 10−27 kg. It is accelerated…

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Q: What must be the radius of a circular loop of wire so the magnetic field at its center is 2.5 x 10-4…

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Q: Vhat is the magnitude of the magnetic field (in nT) at a distance of 12 m from a long traight wire…

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Q: A wire of length 0.050 ? and carries a current ? is in a horizontal uniform magnetic field B of 2.50…

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Q: A 14.76m wire carries a current of 71.06mA perpendicular to a uniform magnetic field of magnitude…

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Q: What is the maximum force due to the horizontal component of the earths magnetic field (20.0x10^-6…

A: When a current carrying wire is placed in the magnetic field, it experience a force normal the…

Q: At what distance (in mm) from a long, straight wire carrying a current of 28 A will the magnitude of…

A: Given, I = 28 AB=1.3 mT  =1.6 x 10-3 Tμ∘=4π x 10-7 Tm/A

Q: A 1 m long wire, through which a current of 10 A is flowing, makes an angle of 30 degrees wit…

A: Given values:- Length of the wire,(L)=1 m -----(1) Current,(I)=10 Amp. ----(2) Angle,(θ)=300…

Q: Find the force acting on a conductor three meter long carrying a current of 50 A at right angles to…

A: The length of the conductor is L = 3 m. The current flowing in the conductor is I = 50 A. The…

Q: A wire of length 0.450 m carries a current of 0.201 A in the positive x-direction, parallel to the…

A: Given, Length of the wire L=0.450 m current I=0.201 A Force F =1.43×10-2N

Q: A SQUID detects a magnetic field of 1.8 * 10-14 T at a distanceof 13 cm. How many electrons flow…

A: Magnetic field due to straight wire is given by  B = μi2πdwhere d is the distance of point from wire…

Q: The accompanying figure shows a long, straight wire carrying a current of 10 A. What is the magnetic…

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Q: A proton enters a magnetic field in such a way that it is traveling perpendicularly to the magnetic…

A: when a proton enters a magnetic field and it travels perpendicular to the magnetic field then it…

Q: What is the magnitude force on a proton moving at 2.5 x 105 m/s in a magnetic field 0.5T If the…

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Q: An electron moving with a velocity 4.9 x10° m/s in a magnetic field B= 5.7 x1oSTwill move in a…

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Q: An electron shoots through a magnetic field with a velocity of 4.5 x 10 m/s at an angle of 30° to…

A: Given data:  Velocity (V) = 4.5×104 m/s Magnetic field (B) = 0.245 T Angle (θ) = 30° Charge on…

Q: Calculate the magnitude of the magnetic force per unit length between a pair of parallel wires…

A: Given data as per question Distance between wires =2.98 m current in each wire=3.40 A

Q: At what distance (in mm) from a long, straight wire carrying a current of 18 A will the magnitude of…

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Q: In New England, the horizontal component of the Earth's magnetic field has a magnitude of  2.2 × 10…

A: Magnitude of magnetic field is B =  2.2 × 10 -5 T Speed of the electron is v = 4.0 × 10 6 m/s Charge…

Q: At what distance (in mm) from a long, straight wire carrying a current of 28 A will the magnitude of…

A: Given,

Q: What is the magnitude of magnetic force per unit length on a wire carrying a current of 8A and…

A: Current , I = 8 A Magnetic field , B = 0.15 T Angle , θ = 30° To find = Force per unit length

Q: i P

A: Given: Current in wire (i) = 25 mA. Radius (r1) = 5 cm. Radius (r2) = 10 cm. Charge on particle (q)…

Q: What is the magnitude force on a proton moving at 2.5 × 105 m/s in a magnetic field 0.5T If the…

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Q: A proton traveling at 22.9° with respect to the direction of a magnetic field of strength 2.41 mT…

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Q: Two long, parallel wires are separated by 8.13 cm and carry currents of 2.91 A and 3.35 A,…

A: Given: The separation between the two long parallel wires: d = 8.13 cm = 0.0813 m; The currents in…

Q: An proton moving at 2.00 x 10³ m/s and at an angle of 53° to a magnetic field experiences a magnetic…

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Q: At what distance (in mm) from a wire carrying a current of 6.14 A is the magnitude of the magnetic…

A: Given: The current is I=6.14 A. The magnetic field is B=13.3 μT. The expression for distance is:…

Q: i

A: Magnetic field (outward by Flemmings Right-hand rule) due to r2 at point p will be  Magnetic field…

Q: At what distance (in mm) from a long, straight wire carrying a current of 16 A will the magnitude of…

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Q: A permalloy magnet is 1.0 cm in diameter, 30 cm long, andhas the magnetization ? = 1.5 · 104 A/m at…

A: Given,

Q: In New England, the horizontal component of the Earth's magnetic field has a magnitude of 1.9 × 10-5…

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Q: r2 i

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Q: The Earth’s magnetic field has a magnitude of approximately 5.0x10^-5T, and in New York City this…

A: Given that Magnitude of magnetic field B = 5 X 10-5 T Speed of proton V = 600 m/s Charge on proton…

Q: A 65.0 m wire carries a current of 5.35 A in a location where Earth's magnetic field is 4.5 x 10^-3…

A: Length of wire, L = 65 m Current, I = 5.35 A Earth's magnetic field, B = 4.5×10-3 T Force, F = 0.35…

Q: Why is the magnetic field B constant throughout all the points of a current-carrying wire?

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Q: A current-carrying straight wire with dimension, L = 2m and m = 150g, is subjected under a magnetic…

A: Given: The length (L) of the wire is 2 m. The mass (m) of the wire is 150 g. The strength of the…

Q: A proton enters a magnetic field in such a way that it is traveling perpendicularly to the magnetic…

A: The solution can be given as follows :-

Q: A cosmic ray proton moving toward the Earth at 5.00 x 10^7 m/s experience a magnetic force of 1.70 x…

A: Given, Velocity v = 5 x 107 m/s Magnetic force F = 1.70 x 10-16 N Charge on proton q = 1.6 x 10-19 C…

Q: Calculate the magnitude of the magnetic force per unit length between a pair of parallel wires…

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Q: A 5 m long wire carries a current of 15 A in a direction that makes an angle of 62.75 degree with…

A: The magnetic force’s (F) magnitude on the conductor of length (l), carrying a current (I), in a…

Q: What is the magnitude force on a proton moving at 2.5 x 105 m/s in a magnetic field 0.5T If the…

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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.