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katrin [286]
3 years ago
12

In a series RLC ac circuit, a second resistor is connected in series with the resistor previously in the circuit. As a result of

this change, what happens to the impedance of the circuit
Physics
1 answer:
AnnyKZ [126]3 years ago
8 0

Answer:

* The first thing we observe is that the frequency response does not change

* The current that circulates in the circuit decreases due to the new resistance at the resonance point,

          Z = R + R₂

Explanation:

The impedance of a series circuit is

          Z₀² = R² + (X_L-X_C) ²

when we place another resistor in series the initial resistance impedance changes to

          Z² = (R + R₂) ² + (X_L - X_C) ²

           

let's analyze this expression

* The first thing we observe is that the frequency response does not change

* The current that circulates in the circuit decreases due to the new resistance at the resonance point,

          Z = R + R₂

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