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How is the magnetic field of an eletromagnet controlled?
The intensity of the magnetic field (measured in Teslas) produced by an electromagnet is directly proportional to the current (measured in Amperes) passing through it's coil windings. Therefore, as long as other variables remain constant, one can vary the intensity of the magnetic field by varying the current. Specifically, the intensity of the magnetic field will vary by the same factor as the current, so if the current is halved, the intensity of the magnetic field will also be halved; and if the current is tripled, the intensity of the magnetic field will also be tripled.
What is meant by tangent law in physics?
when a magnetic substance in placed i two uniform magnetic field (b) and (h) which are mutually perpendicular and coplanar to each other. then the magnetic field intensity of magnetic field of b which making angle θ with h is tanθtimes of h.mathamatically B=tanθxH.
Define intensity of magnetization?
Intensity of magnetisation:-intensity of magnetisation is the magnetic movement per unit volume
How can you detect direction of magnetic field in electron spin resonance?
Certain minerals can record the direction and intensity of the field as it has changed over geological time. Remnant magnetism in samples are measured to plot location of the magnetic pole in the past.
The area around an object that is affected by the magnetism of that object is the?
A Magnetic Force
How is the magnetic field of an eletromagnet controlled?
The intensity of the magnetic field (measured in Teslas) produced by an electromagnet is directly proportional to the current (measured in Amperes) passing through it's coil windings. Therefore, as long as other variables remain constant, one can vary the intensity of the magnetic field by varying the current. Specifically, the intensity of the magnetic field will vary by the same factor as the current, so if the current is halved, the intensity of the magnetic field will also be halved; and if the current is tripled, the intensity of the magnetic field will also be tripled.
What is a property of a magnetic field?
One property of a magnetic field is that its divergence is zero. That means that a magnetic field line is always a loop and that the net magnetic field coming out of or going in to an enclosed surface is always zero. The result of this is that there are no magnetic monopoles, at least none discovered. Theories, however, do abound.
Hall effect can be used to measure?
Magnetic Field Intensity,
What is the difference between magneticomotive force and magnetic field intensity?
Magnetic field intensity speaks of the strength of a magnetic field, usually in Tesla, whereas forces deal with units of Newtons and are fundamentally characterized through F=MA in conjunction with Newton's Laws.
What is the reason for the presence of residual magnetism in the field poles?
I'm not quite sure what you're asking, but the reason that there is magnetism at the poles has to do with the fact that magnetic field vector lines have no beginning or end, which is described mathematically through Maxwell's equations; specifically through Gauss' law for magnetism which states that the divergence of a magnetic field is 0, or ∇ ● B = 0. Divergence is a term meaning how much of something is exiting an enclosed surface. Since the divergence of a magnetic field is zero, there must be, always, the exact same amount of magnetic field exiting a surface as entering it, leaving the net divergence as 0.Thus, a magnetic field vector line has to "exit" from somewhere and loop around to "enter" somewhere else, and these two "somewheres" have to be connected (like a circuit). We call these two "somewheres" the magnetic poles.
What is Magnetic flux density unit?
"Magnetic flux density" is also known as the magnetic field,The SI unit for this is the Tesla, written as T.CommentMagnetic flux density is not "also known as the magnetic field". It describes the intensity of a magnetic field.
What are 3 factors which affect the magnitude of magnetic force on current-carrying conductors?
Electric current, magnetic field intensity, length of the conductor, angle between the electric current and magnetic field
What does gauss law of magnetism say?
It states that the magnetic field B has divergence equal to zero.Source:Book: Electromagnetism Theory: A modern perspectiveAuthors: John and Bartlett p.134
Magnetic field intensity of a straight conductor?
magnetic field is a region of space where a north magnetic monopole experiences a force. The direction of the field is by definition the direction of the force on the north end of a magnet. Since most texts contain diagrams of magnetic fields they will not be reproduced here.
What is meant by tangent in physics?
when a magnetic substance in placed i two uniform magnetic field (b) and (h) which are mutually perpendicular and coplanar to each other. then the magnetic field intensity of magnetic field of b which making angle θ with h is tanθtimes of h.mathamatically B=tanθxH.
What is an archaeointensity?
An archaeointensity is a specific intensity of the Earth's magnetic field at some point in the distant past.
How are electromagnetic fields different from a magnetic field?
Electromagnetic fields can be varying in intensity. A magnet is static.
