You set up a uniform horizontal magnetic field that points from south to north and has magnitude 2.00 x 10-2 T. (This is about 400 times stronger than Earth’s magnetic field, but easily achievable with common magnets.) You want to place a straight copper wire of diameter 0.812 mm in this field, then run enough current through the wire so that the magnetic force will make the wire “float” in midair. This is called magnetic levitation. What minimum current is required to make this happen? The density of copper is 8.96 x 10^3 kg/m^3

Q: A high current-carrying transmission wire has a length of 2.00 m placed in a uniform magnetic field…

A: Given: The length of the wire is 2 m. The strength of the magnetic field. The magnetic force is 85…

Q: A magnetic field at the surface of a neutron star can reach 3.00 × 10^7T. What would be the radii of…

A: The magnitude of the magnetic field, B=3×107 T The speed of light, c=3×108 m/s

Q: Two long parallel wires, each carrying a current of 12 A, lie at a distance of 22 cm from each…

A: Current flowing in both parallel wires (I) = 12 A Separation between the wires (d) = 22 cm…

Q: A conductor of length 1 m carrying a current of 10 A is placed in a uniform magnetic field of 0.2 T,…

A: Given : Length of conductor, L = 1 m            Current, I = 10 A            Magnetic field…

Q: Two long, straight wires are parallel and 24 cm apart. (a) If each wire carries a current of 57 A in…

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Q: A physicist performing a sensitive measurement wants to limit the magnetic force on a moving point…

A: solution is given as

Q: A proton travels with a speed of 4.90 × 106 m/s at an angle of 61° with the direction of a magnetic…

A: speed of proton (v ) = 4.90×106 msAngle (θ) = 61omagnitude of magnetic field (B) = 0.190 T

Q: A proton moves in a circular orbit of radius 56 cm, in an external magnetic field of strength 3.7 T.…

A: Let the mass of the proton is denoted by m, the magnetic field strength is denoted by B and the…

Q: A cosmic ray proton enters Earth's atmosphere moving straight down at 2.98 x 10^8 m/s. Earth's…

A: Given: The velocity of cosmic ray proton v = 2.98x108 m/s. The angle made by earth's magnetic field…

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) A cosmic ray proton moving toward the Earth at 5.15.107 experiences a magnetic force of S…

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Q: An electron moves in a circular orbit of radius 40 cm, in an external magnetic field of strength 3.6…

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Q: Problem 1: A newly discovered negatively charged exotic particle has the same charge as an electron.…

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Q: A power cord for an appliance contains two parallel wires (separated by an insulator) that carry…

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Q: 7. A square house is built with walls facing due North, due East, due West and due South as shown in…

A: Given, L=15.8 mB=5.00×10-4T

Q: a region where there is both an electric field E~ pointing upward (shown in the figure below), and…

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Q: Two long parallel wires in a vacuum are 5 cm apart and carry currents of 5 A and 8 A in the same…

A: The distance of separation between the wires, r=5 cm The current through the first wire, i1=5A The…

Q: A 1.0-m-long segment of wire lies along the x-axis and carries a current of 2.0 A in the positive…

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Q: A proton is travelling 2.4 x 10^9 m/s in a circular path with a magnetic force of 3.3 x 10^-10 N.…

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Q: A proton moves in a circular orbit of radius 40 cm, in an external magnetic field of strength 3.8 T.…

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Q: Aircraft sometimes acquire small static charges. Suppose a supersonic jet has a 0.65 μC charge and…

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Q: A magnet produces a 0.300 T field between its poles, directed to the east. A dust particle with…

A: Given that, the value of magnetic field and charge and velocity. Then We have to determine the…

Q: Consider a large hot air balloon that is drifting due south at a speed of 17 m/s over an area of the…

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Q: A proton moving at 4.00 × 106 m/s through a magnetic field of magnitude 1.70 T experiences a…

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Q: An electron (me by a potential difference of V. Then it passes through a region of transverse…

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Q: What is the magnitude of magnetic force per unit an angle of 30° with the direction of a uniform…

A: Given data:  Length (L) = 1 m Current (I) = 8 A Angle (θ) = 30° Magnetic field (B) = 0.15 T…

Q: In a photographic emulsion, the path of a proton moving perpendicular to a uniform magnetic field of…

A: Given strength of magnetic field,  B = 0.41 T Radius, R = 0.027 m Charge on proton = Q = 1.6 × 10-19…

Q: What is the force on an electron moving in the negative-z direction with a speed of 2.5 x 106 m/s in…

A: Given: The speed of the electron in the negative z-direction is v=2.5×106 m/s The magnetic field in…

Q: A proton moves in a circular orbit of radius 44 cm, in an external magnetic field with velocity…

A:

Q: A proton moves in a circular orbit of radius 24 cm, in an external magnetic field of strength 3.2 T.…

A:

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

A: Given  Current in wire, = I = 10 A  Electron moving at the distance, d = 20 cm  d = 0.20 m  Electron…

Q: A straight,vertical wire carries a current of 1.20 A downward in a region between the poles of a…

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Q: power line carries a current of 1000.0 A. The earth’s magnetic field makes an angle of 73o with the…

A: Given : I = 1000 A θ = 73° B = 7 × 10-5 T L = 50 m

Q: A long straight wire carries a 1.5 A current. An electron moves parallel to the wire at speed 3.1 x…

A: Current , I = 1.5 A Speed , v = 3.1 x 104 m/s Distance , r = 8 cm = 0.08 m To find = magnetic force…

Q: Magnetic field lines are always nearly normal to the surface of a ferromagnet at every point. (This…

A: Given: Magnetic field lines are always nearly normal to the surface of a ferromagnet at every point.…

Q: A cosmic ray proton moving toward the Earth at 14.00×10^7m/s experiences a magnetic force of…

A: Given:- Velocity of the proton is vp=14.00×107 m/s Magnetic force on the comic ray proton is…

Q: A proton moving at 4.00 × 106 m/s through a magnetic field of magnitude 1.70 T experiences a…

A: Given that,The speed of proton : v = 4×106 (m/sec)Magnitude of magnetic field : B = 1.70…

Q: A long straight wire carries a 1.5 A current. An electron moves parallel to the wire at speed 3.1 x…

A:

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.