In which layer of the earth is the source of Earth's magnetic field? Explain the importance of the Earth's magnetic field to humans and to all living organisms. And what happens if we didn't have the electromagnetic field?

Q: Why will dropping an iron magnet on a hard floor make it a weaker magnet?

A: The magnetism property of a piece of iron is depends upon the the alignment of domains. When the…

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

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Q: How the magnetic field changes when we change the permeability value? Explain why.

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Q: between two north magnetic poles? Which diagram correctly represerits the agne O b. Od.

A: b) represents the magnetic field lines between two magnetic north poles.

Q: In what direction would a compass needle point, if it were free to point in all directions, when…

A: Given: compass needle

Q: What causes magnetic fields? What happens if you keep breaking a magnet in two until you reach a…

A: Magnetic field is the effect of current.  Current is produced by movement of electrons. So movement…

Q: what are ways to create a magnetic field?

A: The magnetic field can be created in certain ways.

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: 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: What is the significance of negative susceptibility in magnetism?

A: Different magnetic materials have different values of magnetic susceptibility. The materials having…

Q: Earth's geographic North Pole of the earth is close to its magnetic Geograph k north pole O west O…

A: Poles are the points of origin of all the longitudinal lines of earth and is also where the earth's…

Q: This element give rise to an extensive magnetic field in the Earth.

A: Earth structure is made of different elements and consist of several layers. The earth radius is…

Q: Your friend says that, when a compass is taken across the equator, it turns around and points in the…

A: When a compass is kept near the bar magnet, the compass’s north pole points toward the magnet’s…

Q: What is the relationship between electricity and magnetism

A: The relationship between electricity and magnetism.

Q: Magnetism (Workshe Q.1. What is magnetism? Q.2. Write T or True if the statement is true; write F or…

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Q: High energy charged particles from out in space (these are called cosmic rays), strike Earth more at…

A: High-energy protons (89%) and atomic nuclei (rest%) that move out in space at nearly the speed of…

Q: what creates a magnetic field? how does this work in a magnet to create a strong magnetic field that…

A: Magnetic field is the result of movement of charged particle. The movement of charged particle…

Q: Which one of the following statements is correct? Select one: O Earth's geographic north pole is the…

A: As we know that earth's geographic north pole is close to magnetic south pole and geographic south…

Q: What is a magnetic domain?

A: A magnetic domain is a region within a magnetic material in which the magnetization is in a uniform…

Q: Are there magnetic monopoles?

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Q: Where on the surface of earth is the vertical component of earth’s magnetic field zero?

A: Magnetic field is vector quantity. Horizontal component of magnetic field; BH=Bcosθ…

Q: What current (in A) is needed in a solenoid with 20,800 turns per meter to produce a magnetic field…

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Q: Using your knowledge of ferromagnetism, explain how an iron bar can become permanently magnetized so…

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Q: The earth’s magnetic field varies from point to point in space. Does it also change with time? If…

A: The earth’s magnetic field is shown as, Yes, the earth's magnetic field changes with time. But the…

Q: Briefly explain what is Biot-Savart' Law in Magnetostatic Fields.

A: According to Biot's Savarts law, the magnitude of the magnetic field is proportional the current…

Q: Explain attraction and repulsion by magnets?

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Q: plased batwean two pokes kept 10 om opart as given in the picture If the strongth of te poles is 5…

A: given radius r =3 cm  Strength of magnetic  field =  Am circular area = π*r2 B = magnetic field…

Q: How do animals feels magnetic field?

A: Certain animals have magnetoreception which enables them to detect magnetic field to perceive…

Q: Assume the average value of the vertical component of Earth's magnetic field is 42 µT (downward) in…

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Q: What are magnetic poles? State the convention about polarity with respect to the geographical…

A: Magnetic Pole : A point at either end of a magnetic field where the magnetic force is concentrated…

Q: What are magnetic monopoles? Do they exist?

A: Magnetic Monopoles:                           It is a hypothetical one, with a magnetic charge,…

Q: How much current is needed to produce a significant magnetic field, perhaps as strong as the Earth’s…

A: The magnetic field formula for the solenoid for unit length is B=μ0(nL)IAssume, L=1 m, n=1

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

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Q: Why do like poles of a magnet repel each other ? What is the name of this particular force?What…

A: Like poles of a magnet repel each other:                              This is because when the two…

Q: One way to make a compass is to stick a magnetized needle into a piece of cork and float it in a…

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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: Measurements in mines and boreholes indicate that Earth’s interior temperature increases with depth…

A: The Curie temperature TC for iron is 770oC above which the iron will cease to be ferromagnetic.…

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.