Effective Laboratory Supplies India Ambala Cantt

Compasses and Needles

Product >>Magnetism >>Compasses and Needles

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Compass Plotting

Made from optical glass plates properly cemented with optical cement.

Cat. No.	Dia(mm)
A	12
B	16
C	20
D	25
E	38
F	50
G	75
H	100

Compass Plotting

Magnetic needle mounted on pivot in aluminium case with both sides glass with cross lines at 90Â°.

Cat. No.	Dia(mm)
A	20
B	25
C	50

Compass Pocket

45 mm dia in plastic case with glass cover.

Magnetic Needles

Carbon steel with brass cup bearing for pivoting, accurately balanced

Cat. No.	Length
A	5 cm
B	7.5 cm
C	10 cm

Stand For Magnetic Needle

Non-magnetic pillar with carbon steel point, on stable base, overall height 110 mm.

Cat. No.	Description
A	Same as above but with carbon needle. Bakelite moulded rectangular base.
B	Same as above but with plastic base and pillars supporting carbon needle point.
C	Same as above but made of aluminum stand with needle.

Dip Needle

With steel needle 10cm long on jewelled bearings, with circular metal scale, 13cm dia. and anti parallex mirror, both rotatable about vertical axis. Aluminium base 15cm dia. marked at four quadrants. Complete with extra needle dimensionally identical to first but un-magnetised.

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