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| DESCRIPTION : A thin steel rod (called vibrator) is clamped at one end and passes through a small solenoid. The rod is slightly flattened at the free end and a hole is drilled in it so that a string can be tied through it. The solenoid is connected to A.C. mains through a suitable lamp resistance. A permanent horse shoe magnet is mounted on the base board and a steel rod passes between them. The thin rod is magnetized longitudinally. The solenoid and a horse shoe shaped magnet cause it to vibrate with the frequency of A.C. supply. The length of the vibrator is adjusted until its natural frequency corresponds with that of the supply. The whole unit is mounted on a polished wooden base, complete with pulley, pan and cord. |
Specifications
| Note : The set-up is complete in all respect, no additional accessory required. | |
| Photo Sensitive Device | Vacuum photo tube. |
|---|---|
| Light source | Halogen tungsten lamp 12V/35W |
| Colour Filters | 635mm. 570nm, 540nm, 500nm & 460nm. |
| Accelerating | Voltage : Regulated Voltage Power Supply Output : ±15V continuously variable through multi-turn pot Display : 3½ digit 7-segment LED Accuracy : ±0.2% |
| Current | Detecting Unit : Digital Nanoammeter ( It is high stability low current measuring instrument) Range : 1000 µA, 100 µA, 10 µA & 1 µA with 100% over ranging facility Resolution : 1µA at 1µA range Display : 3½ digit 7-segment LED Accuracy : +00.2% |
| Power Requirement | 220V + 10%, 50Hz or 110V + 10%, 60Hz as required. |
| Optical Bench | The light source can be moved along it to adjust distance between the light source and the phototube, scale length is 400mm. A tube is provided to install colour filter and a focus lens is fixed in the back end. |
DESCRIPTION :
It has the bulb in secondary a n d m a k e a n d b r e a k arrangement in primary to show the phenomenon of self and mutual induction and principle of induction coil, workable on 6 volts.
