This 75mm blue & red painted bar magnet is ideal for doing magnetic repulsion & attraction experiments; only $1.40 (buy 2 for a repulsion/attraction pair).
See our blog on Magnet Experiments for Kids for more information and ideas.
Two 75x18x6.5mm bar magnets were placed in contact with opposing poles (N:N). They were released & the distance caused by the repulsive force was measured.
| Trial 1 | Trial 2 | Trial 3 | Trial 4 | Trial 5 | Average |
|---|---|---|---|---|---|
| 46mm | 44mm | 43mm | 42mm | 44mm | 44mm |
Forty paper clips were placed in a 500ml beaker. A single 75x18x6.5mm ferrite bar magnet was dipped into the beaker to pick up as many paper clips as possible.
| Type | Trial 1 | Trial 2 | Trial 3 | Trial 4 | Trial 5 | Average |
|---|---|---|---|---|---|---|
| Uncoated Steel | 19 | 18 | 21 | 28 | 22 | 22 |
| Plastic Coated Steel | 13 | 11 | 13 | 9 | 9 | 11 |
Good strong magnet, not recommended for kids as they break easily when dropped.
For each Related Product, enter the quantity you would like to order and click the Add to Cart button beside the item.
Yes, brittleness is their main drawback. But, dirt cheap compared to AlNiCo.