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Study of LR Circuit with a sourse of altertnating

INR 6552
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08048036175

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Hyderabad, India, 500001

Description

Description The apparatus typically includes an AC source, a resistor, an inductive coil, connection terminals, and measurement points for voltage and current. Users apply an AC excitation and measure the voltage across and current through the resistor and inductor, observing phase differences caused by inductive reactance. The experiment demonstrates the voltage-current relationship in inductive circuits, verifies Kirchhoff's Voltage Law, and shows the frequency-dependent impedance: Z = R 2 + ( 2 π f L ) 2 Z= R 2 +(2πfL) 2 An oscilloscope is often used to measure and visualize the phase shift between voltage and current waveforms. This study helps understand inductive effects in AC circuits, essential for analysis and design in electrical and electronic engineering.Here is the detailed description based on the conversation and information available: Study of LR Circuit with a Source of Alternating Current - Description This laboratory experiment focuses on the behavior and analysis of LR circuits powered by an alternating current (AC) source. The circuit comprises a resistor (R) and an inductor (L) connected in series or parallel, supplied with a sinusoidal voltage. Objective: To study voltage-current relationships, phase difference between voltage and current, and calculate impedance in LR circuits using AC sources. Apparatus Components: An AC signal generator, a fixed resistor, an inductor coil, measuring instruments such as voltmeters, ammeters, and oscilloscopes, and connecting terminals. Operation: The AC source applies a sinusoidal voltage, and the voltage drop across the resistor and inductor is measured. The current leads the voltage in the inductor, causing a phase difference, which is observed and measured. Electrical Characteristics: The total impedance Z Z of the circuit is given by Z = R 2 + ( 2 π f L ) 2 Z= R 2 +(2πfL) 2 . The voltage across the inductor leads current by 90 degrees, introducing a phase shift measurable with an oscilloscope. Results: The experiment verifies Kirchhoff’s Voltage Law (KVL) in AC circuits and illustrates how the inductor's reactance varies with frequency, impacting the overall circuit behavior. This study provides practical insight into AC circuit theory and pulsing inductive effects critical in electrical and electronic engineering contexts. It also trains users in using instrumentation to measure AC parameters accurately. If an image for this experiment is needed, one has been generated in JPEG format at 800x800 pixels, compliant with your request.

Model No. N-EL071

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