Ionisation Potential of Mercury using gas filled diode with Power Supply and 2 digital meters (V.V.) (C.R.) Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12305
Indian Lab Suppliers supplies the Ionisation Potential of Mercury using gas filled diode with Power Supply and 2 digital meters (V.V.) (C.R.) (Product ID: 12305) as part of its electronics engineering lab equipment range. It finds the ionisation potential of mercury from the current-voltage behaviour of a mercury-vapour diode.
Quick Answer
The diode filament is heated from an AC supply, and the plate voltage is raised from an IC-regulated, continuously variable, short-circuit-protected supply while a 3½-digit digital DC voltmeter and milliammeter record voltage and current. At first the current rises slowly; once electrons gain enough energy to ionise mercury atoms, the current rises sharply, and the voltage at this knee gives the ionisation potential (about 10.4 V for mercury). The unit needs no other apparatus. The tube contains mercury: handle it carefully and, if it breaks, ventilate the room and clear up the mercury with gloves.
Key Specifications
| Parameter | Detail |
|---|---|
| Experiment | Ionisation potential of mercury |
| Tube | Gas-filled (mercury-vapour) diode |
| Plate supply | IC regulated, continuously variable, short-circuit protected |
| Filament supply | AC |
| Meters | 3½-digit digital DC voltmeter and DC milliammeter, 7-segment display |
| Mains | 230 V ±10%, 50 Hz AC |
| Other apparatus | None required |
Where This Is Used
Used in atomic-physics practicals at undergraduate level. Related: Critical Potentials of an atomic gas filled in Electronic Valve with Power Supply and 1 digital meter (Product ID: 12310) and Electrical Thermionic Fundamentals Trainer or Work Function of Tungsten & Richardson's Equation (V.V.) (C.R.) (Product ID: 12306). Browse the full Electronics Engineering Lab Equipment range or related Physics Lab Equipment products.
Frequently Asked Questions
What value should students expect?
About 10.4 V for mercury.
How is the ionisation point identified?
By the sharp rise in plate current on the current-voltage curve.
Does the tube contain mercury?
Yes; handle carefully and follow mercury spill precautions if it breaks.
Related Categories
Electronics Engineering Lab Equipment · Physics Lab Equipment · Electronics Lab Equipment
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