Study of LR Circuit with a source of Alternating EMF with power supply and 4 meters Manufacturer,Supplier and Exporter in India
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Product Code : SCL-EELE-12224
Indian Lab Suppliers supplies the Study of LR Circuit with a source of Alternating EMF with power supply and 4 meters (Product ID: 12224) as part of its electronics engineering lab equipment range. It is a self-contained board for studying an inductor and resistor in series on an alternating supply.
Quick Answer
From the voltages across the resistor, the inductor and the whole circuit, and the current, students find the power factor (cos φ) of the inductive load, the equivalent loss resistance of the inductor, its inductance, and the phase difference between applied voltage and resistor voltage. A mains transformer gives 20, 30, 40, 50 and 60 V AC tappings at 500 mA. Two 0–50 V AC voltmeters, a 0–75 V AC voltmeter and a 0–500 mA AC milliammeter (65 mm round dials) are fitted with the test inductor and a high-wattage resistor. Tappings up to 60 V AC can give a shock, so wire with the supply off.
Key Specifications
| Parameter | Detail |
|---|---|
| AC source | Transformer taps 20, 30, 40, 50, 60 V AC at 500 mA |
| AC voltmeters | Two 0–50 V; one 0–75 V; 65 mm round dials |
| AC milliammeter | 0–500 mA, 65 mm round dial |
| Components | Test inductor; high-wattage resistor |
| Results | Power factor, loss resistance, inductance, phase difference |
| Mains | 230 V ±10%, 50 Hz AC; ON/OFF switch, fuse, jewel light |
| Size and weight | W 340 × H 110 × D 210 mm, about 3 kg |
Where This Is Used
Used in B.Sc. physics and electrical engineering AC practicals. Related: Measurement of power & power factor of L-R Circuits with power supply and 4 meters (Product ID: 12257) and Phase Difference in L.C.R. Circuits with power supply and 1 multi range meter (Product ID: 12216). Browse the full Electronics Engineering Lab Equipment range or related Electricity and Magnetism products.
Frequently Asked Questions
What does the experiment determine?
Power factor, inductor loss resistance, inductance and phase difference.
How many meters are fitted?
Four: three AC voltmeters and one AC milliammeter.
Is other apparatus needed?
No, the board is self-contained.
Related Categories
Electronics Engineering Lab Equipment · Electricity and Magnetism · Physics Lab Equipment
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