Question

Discuss a series RL circuit under A.C. supply and derive expression for the current through it.​



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Answer 1

Answer:

Series RL Circuit Analysis

series RL circuit, the values of frequency f, voltage V, resistance R and inductance L are known and there is no instrument for directly measuring the value of inductive reactance and impedance; so, for complete analysis of series RL circuit, follow these simple steps:Step 1.Since the value of frequency and inductor are known, so firstly calculate the value of inductive reactance XL: XL = 2πfL ohms.Step 2. From the value of XL and R, calculate the total impedance of the circuit which is given byStep 3. Calculate the total phase angle for the circuit θ = tan – 1(XL/ R).Step 4. Use Ohm’s Law and find the value of the total current: I = V/Z amp.Step 5. Calculate the voltages across resistor R and inductor L by using Ohm’s Law. Since the resistor and the inductor are connected in series, so current in them remains the same.

Explanation:

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