Run a cu-rent through it
yes
Not necessarily.
No, the core has to be a soft iron core.
The strength of a magnet can be determined by measuring its magnetic field using a magnetometer or a compass. The stronger the magnetic field, the stronger the magnet.
You have to take it out on a nice date first. Second, you have to pleasure the magnet for exactly 42 minutes. Third, you rub tons of ranch dressing all over the magnet on each side and keep it on there for 3-4 hours. These are the steps to make your electromagnet stronger.
When heat is applied to a magnet, the thermal energy causes the atoms to vibrate more, disrupting their alignment and reducing the magnetism. If the heat is removed, the atoms can realign, potentially increasing the magnet's strength. However, this process is not always consistent and may depend on factors like the type of magnet and the level of heat applied.
both sides (poles) of a magnet have the same magnetic charge
i think the middle
Not if the magnet is symmetrical, and you define 'strength' in terms of flux density.Yes because it has a stronger attraction rate.there is no stronger or weaker for a magnet
Not if the magnet is symmetrical, and you define 'strength' in terms of flux density.Yes because it has a stronger attraction rate.there is no stronger or weaker for a magnet
20000
No.The part of the magnet where there is the strongest pull or attraction are called the poles of the magnet.