Suppose that the Earth's magnetic field (BE) in a given region is parallel to Earth’s surface, pointing north. A metal cable of length l (measured in meter) attached to a space station stretches radially outwards. If the cable is made to move eastward around Earth with a speed v, which end of the cable should turn positive, the lower end or the upper end?

Q: two infinitely long wires carry equal currents i. Each follows a 90° arc on the circumference of the…

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Q: A space station is travelling eastward at a speed of 6.60 x 103 m/s. It is in orbit where the…

A: speed, v = 6.6 x 103 m/s  Magnetic field, B = 1.7 x 10-4 T  length, L= 2.5 km

Q: Consider the torque on a loop of current in a magnetic field. a) At what angle θ (in degrees…

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Q: A conducting wire is turned in a circular loop 100 times. If the wire carries a current of I=1.25 A,…

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Q: A long straight wire is bent as shown to form two parallel straight wires and a semicircle (radius =…

A: The Biot Savart law is given by:

Q: A 0.770 m long solenoid is formed by wrapping 430 turns of wire around a hollow cylinder with a…

A: Given  length of solenoid l=0.77m Number of turns N=430 radius r=0.8 Magnetic field B=0.8T

Q: Following the previous question, if the particle's speed is 86.2 m/s, and the magnetic field has a…

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Q: Consider a circular loop with a 2.50-cm radius in a constantmagnetic field of 0.625 T. Find the…

A: Given:              Radius = 2.50 cm or .025 m Magnetic field = 0.625 T                  Area = πr2…

Q: Question 5.8: A closely wound solenoid of 2000 turns and area of cross-section 1.6 x 10- m²,…

A: In the given question We have to determine the force and torque on the solenoid.

Q: Two very long solenoids have the same length, but solenoid A has 18 times the number of turns, 1/4…

A: The magnetic field inside a solenoid is B=μ0NIL      ...(1) where μ0 is the permeability of free…

Q: Explain Biot -Savart Law and use this law to find the magnetic field at a point P on the axis of the…

A: Biot-Savart Law: The magnetic field produced due to the current-carrying conductor.

Q: If a charged particle moves in a straight line through some region of space, can you say that the…

A: Magnetic force on a moving charged particle is given by,

Q: The magnetic field at the center of an infinite solenoid with radius R is found to have a strength…

A: magnetic field at center of infinite solenoid is given by  B=μ0nIμ0  is permeability of free spacen…

Q: What should be the length of an ideal solenoid consisting of 1250 turns for the magnetic field in…

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Q: A space station is travelling eastward at a speed of 6.60 x 103 m/s. It is in orbit where the…

A: Given : Speed of space station (v) = 6.60 x 103 m/s Magnetic field (B) = 1.70 x 10-4 T Length of a…

Q: For a charge moving through a magnetic field to experience the maximum (magnetic) force possible,…

A: For a charge moving in the magnetic field the force is given by,                  FB = qvBsinθ

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Q: An equilateral triangular loop is in the xy plane as shown in the figure below, in the quadrant of…

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Q: Earth’s magnetic field approximates that of a dipole with a field of 6×10−5 T at the North Pole.…

A: Motional induced emf = Blv

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Q: Suppose we have an infinitely long wire carrying a current of 6.3 A. It is bent into an L-shape…

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Q: The resistance of a rectangular wire frame measuring 3.5 cm by 8 cm is R = 0,6 N. As seen in the…

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Q: Consider the possibility of a new design for an electric train. The engine is driven by the force on…

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Q: A metal rod of mass m slides without friction along two parallel horizontal rails, separated by a…

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Q: et's take the Earth's magnetic field BE = 1.70 x 10-4 T pointing north. A metal cable attached to a…

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Q: At one instant an electron is moving in the positive x direction along the x axis in a region where…

A: Solution:-

Q: A long straight wire carrying a current of 2.5 A to the left is placed directly below and parallel…

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Q: Magnetic field lines can be entirely confined within the core of a toroid, but not within a straight…

A: Magnetic field(B) is given by μ0NI. Where I is the current. In torroid, the magnetic field due to…

Q: Three long straight current-carrying wires are placed on a plane as shown in Figure. The wires…

A: Given data, Current in the left wire = I1 Current in the right wire = I2 Distance between left and…

Q: A jet plane is travelling towards west at a speed of 1800 km/h. What is the voltage difference…

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Q: A circular current loop with a diameter of 3 m carrying a current of 2 A is placed in the xy-plane.…

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Q: The figure shows a circular loop of radius a=2.1 cm concentric with a circular arc of radius b-2.9…

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Q: A current-carrying rectangular wire loop with width a = 0.104 m and length b = 0.245 m is in the…

A: Required values which is used to solve part 4 mean part d is given in the question and we have to…

Q: Two infinetly long wires are laid in four different situations. Each wire is carrying a current I…

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Q: tharged particle, q, is moving with speed v perpendicular to a uniform magnetic econd identical…

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Q: For a current-carrying loop attached to a fixed axis in a uniform magnetic field, what is the phase…

A: Required : What is the angular difference between when the flux is maximum and when the torque 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.