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Magnetic field are unaffected by those materials. Magnets and electrical fields in general are only effected by other magnetic fields. Think of a compass that is brought near another magnet. Magnetic fields are exponential in strength meaning that they are most strong at the surface and quickly fade with distance. Dont have the equation but its simple and straight forward. So if you want a magnetic field to extend through a thick (5mmm) cardboard or plastic you will need larger more powerful magnets such as rare earth or neodymium magnets. Its really about the strength of the magnet and the distance of the magnetic field. Hope that helps.

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Related Questions

Does temperature affect the strength of a magnet is it chemical science?

NO!!! the strength of magnet is not affected by temperature


How does the magnet works on cold and hot temperature and what important idea.?

The strength of a magnet can be affected by temperature. In cold temperatures, a magnet's strength increases, while in hot temperatures, the strength decreases. This is because temperature affects the alignment of atoms within the magnet, which in turn affects the magnet's ability to produce a magnetic field. An important idea to note is that extreme temperatures can demagnetize a magnet altogether.


Is the size of the voltage induced in a coil through which a megnet moves affected by the strength of the magnet?

Yes, the induced voltage in a coil is affected by the strength of the magnet. A stronger magnetic field will generally result in a higher induced voltage in the coil, due to the increased rate of change of magnetic flux.


Is the strength of a magnet affected by hot or cold temperatures?

Yes, extreme hot or cold temperatures can affect the strength of a magnet. High temperatures can weaken a magnet by demagnetizing it, while extremely low temperatures can cause a temporary decrease in magnetic strength. It is important to operate magnets within their specified temperature range to maintain their performance.


Does soaking a magnet in water affect its power?

No, soaking a magnet in water does not affect its power. Magnets are typically not affected by water or other liquids, so it should not impact its magnetic strength.


How does saltwater affect the strength of a magnet?

Not really the saltwater does not change give any affect the strength of a magnet reason water is totally non magnetic but when we have added some salt into it.The salty water solution has ions now it could be very good conducter if we place electricity in it.Then it could be possible the strength of a natural magnet can be affected a bit.........But i dont think normal salt water could give affect the strength of a magnet


How can you detect a magnet?

With a magnet or by sprinkling iron fillings an cardboard if you use it to see the pattern of magnetic field.


How to calculate the strength of a magnet?

To calculate the strength of a magnet, you can use a gaussmeter to measure the magnetic field strength in units of gauss or tesla. The higher the measurement, the stronger the magnet.


Is there a relationship between the size and strength of a magnet?

Generally, the size of a magnet does not directly correlate with its strength. The strength of a magnet is determined by its magnetic material, magnetization, and design. A smaller magnet made of a strong magnetic material can be stronger compared to a larger magnet made of a weaker material.


Does magnet size affect the strength of a magnet?

Yes it does!


Can a magnet attract a paper clip with a card broad between which other?

No, a magnet will not be able to attract a paper clip that has a cardboard between them. The cardboard will act as a barrier, preventing the magnetic force from reaching the paper clip.


How can one determine the strength of a magnet through testing?

To determine the strength of a magnet through testing, you can use a device called a gaussmeter. This tool measures the magnetic field strength of the magnet in units called gauss. By placing the magnet near the gaussmeter and recording the reading, you can determine the strength of the magnet. The higher the gauss reading, the stronger the magnet.