Determination of internal resistance of a D.C. power source with Power Supply and 2 digital meters (C.R.) Manufacturer,Supplier and Exporter in India
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Product Code : SCL-EELE-12291
Indian Lab Suppliers supplies the Determination of internal resistance of a D.C. power source with Power Supply and 2 digital meters (C.R.) (Product ID: 12291) as part of its electronics engineering lab equipment range. It finds the internal resistance of a DC source by matching the load for maximum power transfer.
Quick Answer
A 5 V DC, 1 A regulated source with a built-in internal resistance feeds a variable load. Students record load current on a 2 A range digital meter and terminal voltage on a 20 V range digital voltmeter (both 3½-digit), calculate the power in the load for each setting, and plot power against load resistance. The peak of the curve occurs when the load resistance equals the internal resistance of the source, which gives its value. The board is self-contained.
Key Specifications
| Parameter | Detail |
|---|---|
| Experiment | Internal resistance of a DC source by maximum power transfer |
| Source | 5 V DC at 1 A, regulated, with internal resistance |
| Ammeter | 3½-digit digital DC, 2 A range |
| Voltmeter | 3½-digit digital DC, 20 V range |
| Mains | 230 V ±10%, 50 Hz AC; ON/OFF switch and fuse |
| Other apparatus | None required |
Where This Is Used
Used in DC-circuit and network-theorem practicals. Related: Verification of Superposition, Thevenin's & Reciprocity Theorems with Power Supply and 4 digital meters (C.R.) (Product ID: 12309) and Zener Regulated and IC Regulated Power Supply with Power Supply and 3 digital meters (C.R.) (Product ID: 12307). Browse the full Electronics Engineering Lab Equipment range or related Electricity and Magnetism products.
Frequently Asked Questions
When is power transfer maximum?
When the load resistance equals the internal resistance of the source.
What does the source supply?
5 V DC, up to 1 A.
Which meters are included?
A 2 A digital ammeter and a 20 V digital voltmeter.
Related Categories
Electronics Engineering Lab Equipment · Electricity and Magnetism · Physics Lab Equipment
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