For precise quantitative measurement of electricity. Robust construction, easy to operate and repair. Moving coil has a fairly large periodic time and large moment of inertia. With zero adjusting and locking device. The phosphor bronze suspension strip prevents shifting of zero. Deflection of galvanometer is closely proportional to the current. Fitted with a sensitive spirit level and three levelling screws. Coil fitted with a high quality concave mirror of focal length 100 cm.
|Resistance of||Time Period|
|The coil (ohms)||(Sec.)|
Category: Physics & Electronic Laboratory Apparatus
GEOMETRICAL INSTRUMENT BOX
Soft wood, contains one each of Divider, Protector, Set square 450 angle, Set square 600 angle, Compass, Rule, Board Cleaner. Each with a finger grip for convenient handling. Packed in a wooden box of size 400 x 240 x 75 mm. width x depth x height, fitted with brass fittings and a handle for carrying.
QUICK LOCK CLAMPS
150 mm. long plated screw to hold up to four pair of single groove casted light alloy aluminium washers, fastened with metal washer and nickel plated wing nut.
Light alloy, with single hole to take rods up to 13 mm. diameter.
Set of six perspex geometrical shapes, consisting of one each triangle, square, circle, rectangle, hexagon and octagon.