Electricity & Electrical Circuits

Catalogue No: 1090540

Large size, mounted on base with open construction shows the working of a 3-pole DC motor with easy identification of the parts Works on 4-8V DC. Armature wound with enameled copper wire on insulated plastic bobbin and rotates between two curved steel strips. Field provided by an electromagnet mounted below the armature.
* Motor, Open Model

Pack of (Pcs): 1

Catalogue No: 1091090

A useful apparatus for showing how resistance varies with the type of wire, its length and diameter. The apparatus can be used with wheatstone bridge or a suitable ohm-meter. Lengths and diameters of wires are in 2:1 to simplify computations. A set of five collinear coils wound on identical bobbins and mounted on molded base with 4mm sockets to facilitate electrical connections. The coils are:
1 Copper, 32SWG, 10mtr
2 Copper, 38SWG, 10mtr
3 Copper, 32SWG, 20mtr
4 Copper, 38SWG, 20mtr
5 Nichrome, 38SWG, 10mtr.
* MOUNTED RESISTANCE COILS

Pack of (Pcs): 1

Catalogue No: 1091680

A multirange meter with transparent, square front panel mounted on a sturdy plastic case, incorporating a unique switching system for selecting ammeters or voltmeters ranges both internally and externally by a slider mechanism. The mechanism automatically covers the measurement not in use and opens the desired measurement eliminating any chance of damage to the equipment by error and displays the selected measurement on the meter. The moving coil mechanism is adjustable for zero and also provides negative reading to the left of zero for all measurements. Different ranges in both the measurements selectable through various 4mm socket terminals mounted on top, clearly indicating the range, with a common terminal just below the meter Ranges available are:
Ammeter: 100 micro A, 100mA, 1A and 5A
Voltmeter: 100mV, 1V, 10V, 50V
* MULTIRANGE AMMETER / VOLTMETER COMBINED, DC

Pack of (Pcs): 1

Catalogue No: 1091220/3

A nickel chromium allow especially suitable for high temperature applications. Such as heating elements, rheostats etc.
* Diameter (mm) : 0.71
SWG : 22
Mass (per reel) : 125g

Pack of (Reel): 1

Catalogue No: 1091220/6

A nickel chromium allow especially suitable for high temperature applications. Such as heating elements, rheostats etc.
* Diameter (mm) : 0.38
SWG : 28
Mass (per reel) : 125g

Pack of (Reel): 1

Catalogue No: 1091220/7

A nickel chromium allow especially suitable for high temperature applications. Such as heating elements, rheostats etc.
* Diameter (mm) : 0.31
SWG : 30
Mass (per reel) : 125g

Pack of (Reel): 1

Catalogue No: 1091220/2

A nickel chromium allow especially suitable for high temperature applications. Such as heating elements, rheostats etc.
* Diameter (mm) : 0.91
SWG : 20
Mass (per reel) : 125g

Pack of (Reel): 1

Catalogue No: 1090740

For demonstration of Ohm’s law. This completely self-contained apparatus has all the necessary components for performing experiments. 4mm socket terminals provided for connecting the resistance. On varying the flow of current using the knobs provided the corresponding voltage reading can be had from the voltmeter. Circuit diagram printed on top of the enclosure operates on 220V AC. Also available optionally for 110V AC.
* Ohm’s Law Apparatus

Pack of (Pcs): 1