Conversion of Galvanometer into a Voltmeter (G to V) with Power Supply and 2 meters (C.R.) Manufacturer,Supplier and Exporter in India
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Product Code : SCL-EELE-12303
Indian Lab Suppliers supplies the Conversion of Galvanometer into a Voltmeter (G to V) with Power Supply and 2 meters (C.R.) (Product ID: 12303) as part of its electronics engineering lab equipment range. It covers measuring a galvanometer’s resistance and figure of merit and converting it into a voltmeter.
Quick Answer
Students first find the galvanometer resistance G by the half-deflection method and its figure of merit (current per division). A series resistance R = V/Ig − G then turns the galvanometer into a voltmeter of the chosen range V, where Ig is the full-scale current. The converted meter is calibrated against the built-in 0-5 V DC voltmeter using the potentiometer and a 5 V DC, 50 mA IC-regulated supply. The galvanometer has a 30-0-30 scale on a 65 mm rectangular dial, and the shunt and series resistances are on the board, so nothing else is needed.
Key Specifications
| Parameter | Detail |
|---|---|
| Experiments | Galvanometer resistance by half deflection; figure of merit; conversion to a voltmeter and calibration |
| Galvanometer | 30-0-30 scale, 65 mm rectangular dial |
| Reference meter | DC voltmeter 0-5 V, 65 mm rectangular dial |
| Supply | 5 V DC at 50 mA, IC regulated |
| Components | Shunt and series resistances, potentiometer |
| Mains | 230 V ±10%, 50 Hz AC; ON/OFF switch, fuse and indicator lamp |
| Other apparatus | None required |
Where This Is Used
Used in current-electricity practicals in school and college physics labs. Companion board: Conversion of Galvanometer into an Ammeter (G to A) with Power Supply and 2 meters (C.R.) (Product ID: 12304). Browse the full Electronics Engineering Lab Equipment range or related Physics Lab Equipment products.
Frequently Asked Questions
How is the galvanometer resistance found?
By the half-deflection method.
What converts it to a voltmeter?
A high resistance connected in series.
How is the converted meter checked?
Against the built-in 0-5 V DC voltmeter.
Related Categories
Electronics Engineering Lab Equipment · Physics Lab Equipment · Electricity and Magnetism
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