Pretty much the way it responds in air. There is little difference between the ability of the magnetic lines of force to "penetrate" and "travel through" air as a vacuum. The "field strength" and "field pattern" will be virtually identical.
No, a ruby does not respond to magnet.
A magnet or electromagnet.
Some kind of magnet or magnetic field is necessary for a motor to operate. Alternating current vacuum cleaners (that plug into the wall) have motors with electromagnets. Direct current vacuum cleaners (that plug into the car's cigarette lighter socket) have motors with permanent magnets.
No, salt cannot be separated from something else with a magnet. Salt is not magnetic and does not respond to magnetic fields.
No, a magnet will not attract a wood ruler. Wood is a non-magnetic material, meaning it does not contain ferromagnetic substances that would respond to a magnet's magnetic field. Therefore, there will be no attraction between the magnet and the wood ruler.
The easiest way would be to use a magnet. Iron is naturally magnetic, and will respond to and follow a magnet, while sulfur is not magnetic and will stay in its place.
Yes. How else? If it touched Anything other that is matter, it would annihilate.
No At least, not unless it happens to have a very large magnet in it for some reason.
Magnet emmits electromagnetic waves which only affects 3 metals:iron,nickel and cobalt. Papes does not get affected as it's atoms do not respond to electromagnetic waves.
If the vacuum cleaner is powered by electricity this is used to turn the electric motor which is needed to create the suction or vacuum. That motor either has permanent magnets inside it, or the current passes through many "turns" of wire to create magnets when you switch the cleaner on. Early experiment in electricity showed that if a wire is moved in a magnetic field some current is created. Similarly, if a magnet is moved near to a wire the same result occurs. So, yes the cleaner does need a magnet.
if you can find a really strong magnet or a vacuum with a small nozzle to suck air threw and pull it out
To separate iron fillings from sulfur, you can use a magnet to attract the iron fillings as they are magnetic and can be easily picked up. Sulfur does not respond to magnets, so the iron fillings can be separated by simply utilizing the magnet.