What technique would you expect to use for this type of problem? If the inductor were replaced with a resistor, what would your answer be?8700 said:
If the inductor were replaced with a resistor, what technique would you use?8700 said:
8700 said:
Yep. And if you want to see some good examples of how to work with them, just do a Google Images search on Phasor Voltage Divider...8700 said:
A LR circuit is a type of electronic circuit that contains a combination of inductors (L) and resistors (R). It is used to control the flow of electrical current and is commonly used in filter circuits, oscillators, and amplifiers.
The response of a LR circuit to different frequencies can be analyzed by looking at its frequency response. This refers to how the circuit's output voltage changes in response to different input frequencies. The frequency response of a LR circuit is affected by the values of the inductance and resistance, as well as the frequency of the input signal.
The resonant frequency of a LR circuit is the frequency at which the circuit will have the highest response or the greatest amplitude. This occurs when the inductive reactance (XL) and the resistive reactance (XR) are equal, resulting in a purely resistive circuit. The resonant frequency can be calculated using the formula f = 1/2π√(LC), where L is the inductance and C is the capacitance of the circuit.
The impedance of a LR circuit can be calculated using the formula Z = √(R^2 + (XL - XR)^2), where R is the resistance, XL is the inductive reactance, and XR is the resistive reactance. The impedance is a measure of the total opposition to current flow in the circuit and is affected by the values of the inductance, resistance, and frequency.
In a LR circuit, the voltage and current are out of phase, meaning they do not peak at the same time. The voltage in a LR circuit lags behind the current by 90 degrees. This is due to the inductor's property of opposing changes in current, resulting in a delay in the voltage across the inductor.