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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.
What else can I help you with?
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
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 determines the magnetic polarity of an electromagnet?
Neodymium Iron Boron (NdFeB or NIB) would be the stongest material of an magnet.(Is the tempature which for this material is 12,800 . Hc is the lenth of the material which is 12,300. BHmax is the strenth which is for this material 40 . The other strenth for other materials are 26, 5.5,3.5 . The highest was 40
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.
Why would magnetic compass not work in space?
A magnetic compass depends on Earth's magnetic field for orientation. In space, there is no magnetic field to interact with, so a magnetic compass would not be useful for navigation. Other orientation systems, like gyroscopes or star tracking sensors, are used instead in space.
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.
What characteristic of iron would make it a bad material for housing a compass?
It is magnetic and would throw off your little dial
What will happen if you place a magnetic compass in an electric curcuit?
Placing a magnetic compass in an electric circuit would interfere with its ability to accurately point to the Earth's magnetic north. The magnetic field generated by the electric current in the circuit would cause the compass needle to deflect from its normal orientation.
What would happen if you put magnet next to a compass?
The compass needle would be affected by the magnetic field from the nearby magnet. The needle would align itself with the magnetic field of the magnet, causing the compass to point in a direction different from true north.
An instrument that would not be expected to react to a magnetic storm?
Compass.
What tool would you use to detect magnetic effects?
A magnetic needle meter, or a simple compass.
