Determination of the resistance & capacitance of a capacitor with power supply and 4 meters (C.R.) Manufacturer,Supplier and Exporter in India
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Product Code : SCL-EELE-12265
Indian Lab Suppliers supplies the Determination of the resistance & capacitance of a capacitor with power supply and 4 meters (C.R.) (Product ID: 12265) as part of its electronics engineering lab equipment range. It finds the equivalent resistance and the capacitance of a capacitor by the three-ammeter method with a voltmeter.
Quick Answer
The capacitor under test is connected in parallel with a 120 ohm, 30 W resistor and fed from a mains transformer with secondary tappings at 20, 30, 40, 50 and 60 V (500 mA). Three AC milliammeters (0-500 mA) read the resistor current, the capacitor current and the total current, and an AC voltmeter (0-75 V) reads the applied voltage. Because the three currents form a phasor triangle, students calculate the phase angle of the capacitor branch and from it the capacitor’s loss resistance and capacitance at 50 Hz. The board is self-contained. The resistor runs warm at higher tappings, so avoid touching it.
Key Specifications
| Parameter | Detail |
|---|---|
| Method | Three ammeters and one voltmeter on a 50 Hz AC source |
| AC source | Mains transformer, secondary tappings 20, 30, 40, 50, 60 V at 500 mA |
| Ammeters | 3 x AC milliammeter 0-500 mA, 65 mm round dial |
| Voltmeter | AC voltmeter 0-75 V, 65 mm round dial |
| Components | Capacitor under test; 120 ohm / 30 W resistor |
| Mains | 230 V ±10%, 50 Hz AC; ON/OFF switch, fuse and indicator lamp |
| Other apparatus | None required |
Where This Is Used
Used in AC-circuit practicals in physics and electrical labs. Related: De Sauty Bridge with Oscillator and Detector (Product ID: 12088) and Study of the charge and discharge of condenser through a resistance using Neon Bulb with Power Supply and 1 digital meter (Product ID: 12299). Browse the full Electronics Engineering Lab Equipment range or related Electricity and Magnetism products.
Frequently Asked Questions
Is any other apparatus needed?
No. The transformer, three ammeters, voltmeter and components are all on the board.
What voltages can be applied?
20, 30, 40, 50 or 60 V AC from the transformer tappings.
What is the known resistance?
120 ohm, rated 30 W.
Related Categories
Electronics Engineering Lab Equipment · Electricity and Magnetism · Physics Lab Equipment
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