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I'm not sure, but I can tell you that I have a very cheap (97 cent) compass that suddenly started reading backwards. I fixed it by placing it directly on top of a magnetizer-demagnetizer for several seconds (like one you use to temporarily magnetize screwdrivers with) and now it reads normal again. *I only used that tool because that's the only real magnet that I have lying around. A regular magnet may have worked as well.
Wiki User
∙ 15y ago
Wiki User
∙ 14y agoIt would make a compass needle point south ! :-)
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If you held the south pole of a megnet next to a compass what would happen?
It would still point magnetic north. Magnetic north and geographic north are different. If you had it precisely at magnetic north, it would have trouble pointing, but doing so would be almost impossible because the magnetic field is constantly fluctuating.
A compass needle changes direction if the flow of electricity in the wire near it is reversed.?
The only way to make current flow through a compass needle is to connect a wire to each end of the needle. When you do that, the direction the needle points is completely determined by the wires, and it's no longer free to rotate. So I'd say that nothing at all interesting happens.
How is magnet important in compass?
To indicate the direction in which the map is drawn to. Without the compass rose, you would not know which direction you are heading to, neither would you be able to navigate your way out with a compass in your hand.
What is an example of polarity?
The definition of Polarity is -The uneven distribution of charges across a molecule -.so examples of polarity would be *water molecule with 2 positive hydrogen atoms and 1 negative oxygen atom *left hand and a right hand *east and west -.it's basically anything that is opposites
What is the Force that pushes or pulls magnetic material near a magnet?
Magnetic forces are produced by the motion of charged particles such as electrons. Magnetism is one of the fundamental forces of nature.
If you wanted to trace the creation of tectonic plates using magnetic bands of normal and reversed polarity your best place to measure the magnetic stripes would be?
I need help
What would happen if the direction of the current through a hall probe is reversed?
The idea is that the magnetic field of the device reacts with the external magnetic field. If the current is reversed, the magnetic field would also be reversed, and the reading would be the opposite.
What best describes Earth's north magnetic pole?
Your expression, 'earth's north magnetic pole' is, at best, confusing. Are you referring to 'Magnetic North', which is a location and not the polarity of that location? Or are you referring to the magnetic polarity of this location, which is a south pole?If the former, then a compass indicates the direction of Magnetic North. If the latter, then earth's north magnetic pole is located at Magnetic South. In other words, a compass needle points to Magnetic North because it is attracted by its south magnetic polarity.Just to expand somewhat on this answer... 'Magnetic North' and 'Magnetic South' are so-named to differentiate their locations from 'True North' and 'True South'. In other words, 'Magnetic North' and 'Magnetic South' are locationsand not magnetic polarities. In fact, the magnetic polarity of True North is a south pole, and the magnetic polarity of True South is a north pole. I would also argue that the terms 'Magnetic North (or South) Pole' is confusing, because the location is not really a 'pole' in either the geographic or magnetic sense. By calling Magnetic North, a 'pole' causes confusion, making some students confuse their location ('Magnetic North') with their polarity ('south')!Apex answer: Wandering
Why would magnetic compass not work in space?
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What direction does a compass always point?
Magnetic northNorth.In line with the earth's magnetic field.A way to remember the four directions on a compass is Never Eat Soggy Waffles or Never Eat Slimy Worms.magnetic north
How is the force affected when the current is reversed in a magnetic field?
The magnetic field would reverse.
Where are the magnetic North Pole and the geographic North Pole located?
magnetic south pole is closer to the geographic north pole..... that's why north pole of bar magnet when suspended free in air shows the north direction...
On the real ocean floor alternating stripes of normal and reversed polarity are not all of equal width. What does this tell you about the lengths of time represented by normal and reversed polarity?
It would indicate that the length of time between reversals is not predictable.
What is reverse magnetic polarity?
lets say the earth was to have a magnetic polarity reversal the north pole would become the south pole, and the south pole would become the north pole. i hope that helps.
When does the north pole become the south pole and the south pole become the north pole?
Answer The answer is no, of course not! It is the magnetic polarity of the earth that is being flipped, not the locations of Magnetic North and Magnetic South. Remember, 'Magnetic North' and 'Magnetic South' are locations, not magnetic poles. So even if their magnetic polarities flip, the names of the locations won't ever change! All that would happen is that the magnetic field would reverse, and your compass would point to Magnetic South instead of Magnetic North.Think of it this way, if the magnetic polarity of the earth flips, you wouldn't swap the names 'Arctic' and 'Antarctic'! So, why would you swap the names 'Magnetic North' and 'Magnetic South'!!!!!
What happens to a current carrying wire in a magnetic field if the current is reversed?
In that case, the magnetic field caused by the current would also be reversed. As for the wire itself, it would feel a force in the opposite direction, due to the interaction of the magnetic fields.
An instrument that would not be expected to react to a magnetic storm?
Compass.
