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What shape can be drawn though a solenoid to determine the magnitude of its magnetic field?
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What is the magnitude of alpha umi?
Alpha Ursae Minoris, or Polaris, has a magnitude of 1.97. It is also a Population I (high metal content, like our sun) Cepheid variable star, which means its magnitude changes over a certain period (though the change is minor).
Are most substances magnetic?
Technically all substances are magnetic in some way: it's either ferromagnetic (what most people would consider "magnetic"), paramagnetic (weakly attracted to a magnetic field), or diamagnetic (weakly repelled by a magnetic field). Not many substances are "magnetic" in the usual lay meaning of the word, though.
Earth magnet what?
Earth's magnetic field (and the surface magnetic field) is approximately a magnetic dipole, with the magnetic field South pole near the Earth's geographic north pole (see Magnetic North Pole) and the other magnetic field N pole near the Earth's geographic south pole (see Magnetic South Pole). This makes the compass usable for navigation. The cause of the field can be explained by dynamo theory. A magnetic field extends infinitely, though it weakens with distance from its source. The Earth's magnetic field, also called the geomagnetic field, which effectively extends several tens of thousands of kilometres into space, forms the Earth's magnetosphere. A paleomagnetic study of Australian red dacite and pillow basalt has estimated the magnetic field to be at least 3.5 billion years old.
What happens when a compass is placed near a current-carrying wire?
That depends. If we assume that current is flowing though the wire then there is an induced magnetic field equal to B=u_o*I/(2R*pi). For a visual refer to http://hyperphysics.phy-astr.gsu.edu/HBASE/magnetic/magcur.html#c2
Why time is not a vector quantity?
No, time is a scalar quantity. And any interval of time is also scalar. It has magnitude only. A vector quantity is a scalar quantity that has the added or extra "dimension" of direction. Time has magnitude, but is not considered to have direction as such. Time, though it can be "tricky" to deal with in quantum Is_time_a_vector_or_scalar_quantity, is generally thought of as moving "forward" and generally cannot more in another direction. (Save the "exceptions" for more advanced physics, please.)
Why is the zeeman effect used by astronomers?
It's used to determine the magnetic field strength of stars. That's not really a "why", though. I suppose the "why" would be "because they want to know the magnetic field strength of stars".
Was there an earthquake right now with a magnitude of 6.9 in Baja Mexico?
Yes there was. They've upgraded it to a 7.2 magnitude though. Scary.
Does a 99 Mitsubishi diamante have an egr solenoid or just the egr valve. If it does have the solenoid where is it related to the valve?
Yes, the Diamante has an EGR solenoid. On any Mitsubishi, if the car has an egr valve, it has a solenoid to operate the valve. Just follow the vacuum line from the valve and it will go to the solenoid. There may be another one way valve between the valve and the solenoid, though. The solenoid is electronic.
Is centrifugal acceleration a uniform acceleration?
In the rotating frame, it can be (though it doesn't have to be). In an inertial frame, no (though it can be uniform in magnitude).
The needle of a magnetic compass points toward the?
North. It can, what they call "dance" if you are near magnetic rock though.
What do the initials MRI stand for or mean?
The meaning I know is 'Magnetic Resonance Imaging', though there will be others
How does magnetic force become stronger?
Since magnitude of magnetic force is given by, Fm = qvB sinθ,force will be maximum when θ = 90o So, magnetic force becomes stronger when a charged particle is moving perpendicular to the direction of magnetic field.
What are Magnetic Properties of Metals?
Iron (Fe) Cobalt (Co) and Nickel (Ni) iron, steel, nickel, and cobalt all have magnetic properties. Lodestone is also magnetic and was used to make early compasses a long time ago because it has magnetic metal elements in it.
Are electric currents magnetic?
A magnetic field is always associated with a moving charge. So, if current is there, it must be showing the magnetic effects though these are too small of daily relevance..
Is sulphide magnetic?
No, not at all. Iron is though, so if you are talking about Iron Sulphide then it's a little magnetic but only in small chunks
What did Faraday show in 1831?
moveing a wire though a magnetic field
What is the magnitude of alpha umi?
Alpha Ursae Minoris, or Polaris, has a magnitude of 1.97. It is also a Population I (high metal content, like our sun) Cepheid variable star, which means its magnitude changes over a certain period (though the change is minor).
