75mm (3") Bar Magnet

SKU: 33544

$0.75USD or lower Each

Save More When You Buy More!
Quantity	1+	10+
Price for each	$0.75USD	$0.70USD
Your savings	-	6.67%

Qty:

[4] 1 Reviews | Write a Review

This 75mm blue & red painted bar magnet is ideal for doing magnetic repulsion & attraction experiments. Special pricing in effect, now only $0.75 (buy 2 for a repulsion/attraction pair).

See our blog on Magnet Experiments for Kids for more information and ideas.

Do magnet experiments at home for preschoolers or with kindergarten aged children. Try picking up common objects such as spoons.

These bar magnets are very weak & will not stick to refrigerators or trip switches. Prices are discounted; all sales are final & no returns.

Details Specs Reviews Related Products

Details

Repulsion Test

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

Paperclip Pickup Test

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

Specifications

If you need bar shaped magnets with greater holding or repelling force, see: neodymium magnet blocks.

Use for repulsion-attraction
Will not demagnetize when pushed together
Stamped "N" & "S" & painted red & blue respectively
Paint is guaranteed lead & heavy metal free
Will pick up minimum of 20 uncoated paperclips
Note (1): Ferrite bars are fragile/brittle. Do not drop on hard floors.
Note (2): Ferrite bars are relatively weak & will not magnetize nails or pins. Stronger magnets such as Nd or Alnico are best for this application.

Reviews (1)

2017-04-20

Good strong magnet, not recommended for kids as they break easily when dropped.

— Indigo:

Yes, brittleness is their main drawback. But, dirt cheap compared to AlNiCo.

Review This Product Now!

Give Us A Star Rating *

Email address used when ordering this product.
(Not displayed; used only for order confirmation)*

Display Name (e.g. First Name or nickname.)

Review*

For each Related Product, enter the quantity you would like to order and click the Add to Cart button beside the item.