Electricity and Magnetism Page 2

For collision studies in physics and other applications such as focussing magnet etc. Charged on the faces.

OD x ID x H	Cat. No.
32 x 18 x 6mm	3111-01
36 x 18 x 8mm	3111-02
45 x 22 x 9mm	3111-03
45 x 22 x 11mm	3111-04
53 x 24 x 9mm	3111-05
30 x 10 x 6mm	3111-06

Used in conjunction with plastic beads and ring magnets for motion and collision studies in physics and for other applications. Can be magnetised along any side.

D x H	Cat. No.
18 x 4mm	3112-01
30 x 5mm	3112-02

Approximate dimensions

OD x ID x H	Cat. No.
54 x 13 x 9mm	3113-01
40 x 25 x 10mm	3113-02

MAGNETS SET, RING, CERAMIC (FLOATING MAGNETS, WOBBLY MAGNETS)

To show that like magnetic poles repel each other by placing three or more ring magnets on a non-magnetic stand. Comprises five colored ring magnets (o.d. x i.d. x h), 32 x 16 x 6mm magnetised parallel to the axis, equipped with an acrylic rod mounted on a plastic base. The magnets float in the air, one over the others and spring back up when pushed down.

Cat. No.

3116-00

MAGNETIC NEEDLE ON STAND (DEMONSTRATION COMPASS)

For studying magnetic phenomena such as operation of a compass, testing of magnetic poles, finding the direction of electric current etc. Consists of a magnetised steel needle about 150mm long with brass bearing pivoted on a non-magnetic metal stand. North pole is marked in red. The needle when not in use is reversed and kept in main rod for safety.

Part	Cat. No.
	3118-01
Spare Needle	3118-02

For tracing the magnetic fields of bar magnets. Consists of a magnetic needle encased in cylindrical aluminum case with glass top. Card dial.

Diameter	Cat. No.
16mm	3121-01
25mm	3121-02
37mm	3121-03
50mm	3121-04

MAGNETIC COMPASS

For plotting and exploring magnetic field. In a plastic case with a four color graduated dial. Full circle divided into 360ß with N, W, S, E, etc. directions indicated. Graduated every 5ß and labelled in 15ß increments. The red tip indicates north. Diameter 38mm.

Cat. No.

3121-21