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Field Magnetic
Can the magnetic field strength of an object affect the distance in between the objects?
I have a science fair project. The subject is in physics and astronomy combined. I am trying to prove that the magnetic field strength of a Magnetar affects the distance in-between a star nearby within the Magnetar's constellation. Can it?
I'm not sure what you mean by "distance in between a star nearby" but 'nearby' is a very relative term. If I understand your question to be, "can a Magnetar repel or attract a nearby star" I would have to say no, unless it was in a binary system, and a binary system usually isn't the type in which a magnetar would develop. While it's true that the magnetic field of a magnetar is incredibly powerful, the magnetic flux decreases the further away you get. Star systems are on the order of tens to thousands of light years away from each other. Like magnetism, gravitational attraction decreases the further two objects are from each other, however, gravitational forces are much more influential in a star systems motion. As a side note, a Magnetar's life span is on the order of a few thousand to 20 thousand years. In astronomic terms, this is the blink of an eye. Any effect a magnetar had on an adjacent system would be over as soon as it began. The biggest influence a magnetar has on surrounding systems are the huge amounts of x-ray and gamma radiation they can put out.
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| | Magnetic Field $149.76 Magnetic field. Magnetization, Magnetic moment, Magnet, Field line, Gausss law for magnetism, Magnetic monopole, Electromagnet, BiotSavart law, Ampres circuital law, Lorentz force, Righthand rule, Electromagnetism, Faradays law of induction, Magnetic flux, Maxwells equations, Electromagnetic tensor, Magnetic potential, Magnetometer, Orders of magnitude (magnetic field), Classical electromagnetism and special relativity, Relativistic electromagnetism, Moving magnet and conductor problem, Magnetic circuit, Hall effect, Dipole, Earths magnetic field, Rotating magnetic field, Alternator Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 242 Publication Date: 2009/10/11 Language: English Dimensions: 5.98 x 9.01 x 0.54 inches |
| | Magnetic Field Lines on the Sun $124.99 Stocktrek Images Magnetic Field Lines on the Sun - Wall Mural |
| | Earths Magnetic Field $70.1 Earths magnetic field (and the surface magnetic field) is approximately a magnetic dipole, with the magnetic field S pole near the Earths geographic north pole (see Magnetic North Pole) and the other magnetic field N pole near the Earths geographic south pole (see Magnetic South Pole). An imaginary line joining the magnetic poles would be inclined by approximately 11.3 from the planets axis of rotation. The cause of the field can be explained by dynamo theory. Magnetic fields extend infinitely, though they are weaker further from their source. The Earths magnetic field, which effectively extends several tens of thousands of kilometres into space, is called the magnetosphere Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 88 Publication Date: 2010/07/27 Language: English Dimensions: 5.98 x 9.01 x 0.21 inches |
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| | Know Your Magnetic Field $17.54 William E. Gray is one of the leading authors of New Thought movement. Know Your Magnetic Field is one of Grays most notable works and is considered to be one of the top 100 most Inspirational written. In Know Your Magnetic Field gray addressed the issue of diseases and his belief that all illness can be healed by using mental abilities inherent in everyone. The theory presented in this book is new only in the sense that it has been revitalized of recent date. It is, in fact, as old as the world. Those who have seen the results of this theory in practice have called it miraculous. Others who have yet to see and learn and understand have called it fakery. Read Know Your Magnetic Field and decide for yourself. Author: Gray, William E. Binding Type: Paperback Number of Pages: 90 Publication Date: 2011/03/01 Language: English Dimensions: 5.98 x 9.02 x 0.19 inches |
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What is the magnetic field?
What distance is the magnetic field from the wire?
At what distance from a long, straight wire carrying a current of 7.6 A is the magnetic field due to the wire equal to the strength
of Earth's field, approximately 5.6 x 10^ -5 T?
The permeabilty of free space is 1.25664 x 10^ -6 T*m/A.
Answer in units of cm.
Biot-Savart Law - Magnetic field around a straight conductor carrying a current I.
B = μ_0 I/2πr
where:
B is strength of magnetic field in T.
μ_0 is permeability of free space = 1.25664 x 10^ -6 T-m/A.
I is current in A.
r is distance from conductor in m.
So r = μ_0 I/2πB
r = (1.25664 x 10^ -6 T-m/A * 7.6A)/(2π * 5.6 x 10^ -5 T) = 0.0271429 m = 2.7 cm
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