Volcanic and other such activity at the mid-Atlantic ridge extrudes material to fill the gap between separating tectonic plates associated with continental drift. The magnetization of rocks is found to reverse in a coordinated manner with distance from the ridge. What does this imply about the Earth’s magnetic field and how could the knowledge of the spreading rate be used to give its historical record?

Q: Although copper and aluminum are not magnetic, why is a sheet of either metal more difficult to pass…

A: When a metal sheet is passed between the poles of a magnet, then eddy current in induced in them by…

Q: What effect does the Earth's magnetic field have on the intensity of cosmic rays striking Earth's…

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Q: What changes in cosmic-ray intensity at Earth’s surface would you expect during periods in which…

A: The Earth's magnetic field works as a shield to the Earth from harmful rays. This magnetic field is…

Q: Can we use a smartphone compass in identifying the magnetic field lines of a bar magnet?

A: A system called Pulse uses the magnetic field sensor or magnetometer for the compass app in iPhones…

Q: We know that a compass points northward because Earth is a giant magnet. Will the northward-pointing…

A: The magnetization field of a magnetic region points in the direction of average dipole moment in…

Q: Why do we draw the boundary of the bar magnet?

A: The boundary of bar magnet is drawn to indicate the length of the magnet and the distance between…

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

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Q: A high power line carries a current of 4.9 kA. What is the strength of the magnetic field this line…

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Q: If the Earth's magnetic field is dynamic, is the direction of the compass needle accurate? Explain.

A: Although Earth's magnetic field is dynamic ,but it takes 2,00,000 years to 3,00,000 years to change…

Q: if you took a bar magnet and cut it in half, then cut each of those halves in half again, how many…

A: If we cut a magnet into two parts the new magnets that is each piece will again have two poles…

Q: The axle of a certain motor car is 1.5 m long. Calculate the e.m.f. generated in it when the car is…

A: The emf induced by motion relative to a magnetic field is called a motional emf and is given by, emf…

Q: Why would a magnetohydrodynamic drive work better in ocean water than in fresh water? Also, why…

A: To determine the magnetohydrodynamic drive work better in ocean water than in fresh water and…

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

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Q: In Houston, the earth’s magnetic field has a magnitude of 5.2 x 10^-5 T and points in a direction…

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Q: Supposed a non-uniform magnetic field was probed with a magnetometer giving values in terms of…

A: Flux per grid=3 square meters per grid Total flux=s 94 mWb.

Q: ge of Ving with instaneous velo magnetic field a) B= (1.4T ) i b) 1.40TJ Attach File Browse Local…

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Q: How to calculate the magnitude of the acceleration caused by the magnetic field? mass is 15 kg,…

A: The given values are,

Q: vants to use a solenoid she found on a car starter. If the solenoid is 0.124 m long and has 845 what…

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Q: Two bar magnets of different strengths are inserted in two identical loops with equal velocities.…

A: When two bar magnets of different strengths are inserted in two identical loops with equal…

Q: A cable carries power straight up to an airport control tower. When the current is running upward,…

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Q: What is the reason for sprinkling iron filings around these two magnets?

A: Iron filings are small shavings of ferromagnetic material. An important property of a ferromagnetic…

Q: ,what are the magnitude and direction of the magnetic field at point A?

A: Given; Initial electric field, E=160V/m Rate of change of electric field, dEdt=13.0Vm-1s-1 Radius of…

Q: Why magnetic field strength increases when you put a ferromagnetic material inside a solenoid…

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Q: A 1.0 m length of wire carrying 4.1 A of current toward the south is oriented horizontally. At that…

A: Magnetic force formula

Q: Does the Earth's magnetic field have a greater magnitude near the poles or near the equator?

A: Earth's magnetic field: It is described by magnetic field lines which emerge out from the south pole…

Q: Using your basic understanding of magnetism and its laws, explain that, if a charged particle is not…

A: Let the magnetic field strength = B let the charge = q Let the velocity of charge = v

Q: What is permeability having 2.5 Tesla and magnetic field intensity of 5.2 ampereturns/meter

A: Refer attachment

Q: If a cosmic ray proton approaches the Earth from outer space along a line toward the center of the…

A: When a charged particle is moving in a magnetic field B with a velocity v, the magnetic force acting…

Q: What does a charged particle experiences when moving in a circular magnetic field that is…

A: Consider a charge particle of magnitude q which is travelling with some velocity v in a region…

Q: ng to measur magnetie stomm ughber lays out a cireutar oil with L50 turns ef radiur EMSM in a…

A: Given data:    Number of turns, n = 250 turns     Radius, r = 75 m    Magnetic field, ∆B=250×10-9T…

Q: If you were to cut a small permanent bar magnet in half, does it mean neither piece would be…

A: When you cut a magnet in half it will can end up with two magnets. Consider a small permanent magnet…

Q: In New Hampshire the average horizontal component of Earth’s magnetic field in 1912 was 16 mT, and…

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Q: Supposed a non-uniform magnetic field was probed with a magnetometer giving values in terms of…

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Q: How can you generate uniform static magnetic field?

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Q: What is the magnetic force that 0.50 m of a current-carrying wire experiences as 3.0 A of current…

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Q: Do you think it is possible to instead use magnetic field from an external source to generate…

A: In order to produce the current in the circuit we need tochange magnetic flux through the circuit.…

Q: Why is it advised not to make horse shoe magnet from a flexible material?

A: The horseshoes magnets are usually made using alnico (an alloy of iron) or steel which are very hard…

Q: Explain the difference between similar (uniform) and dissimilar (non-uniform) magnetic fields.…

A: Given: Asked to explain the difference between similar (uniform) and dissimilar (non-uniform)…

Q: Why can’t magnetic compass be your sole guide to direct you to the geographic north or south poles?

A: A compass is a device that denotes direction, for navigation purpose we are using compass. Magnetic…

Q: How would you go about finding the vertical component of Earth's magnetic field, thus the total…

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Q: Assume the average value of the vertical component of Earth’s magnetic field is 43 mT (downward) for…

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Q: Geologists claim that besides the main magnetic N-S poles, there are several local poles on the…

A: Even though the north south geographic poles represent the main magnetic poles, there are several…

Q: Assume the Earth's magnetic field at the equator to be 0.4x10^-4 T and oriented north at all points.…

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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.