In a choke L-section filter, the inductor is connected in series and the capacitor is connected across the load. Let's understand this in detail.

1. Choke L-Section Filter:
- A choke L-section filter is a type of passive filter used in electronic circuits to attenuate unwanted signals or noise from the desired signal.
- It consists of a series inductor (choke) and a shunt capacitor.
- The choke is used to block high-frequency signals, while the capacitor is used to bypass these signals to ground.
- This combination of inductor and capacitor provides high impedance to the unwanted signals and low impedance to the desired signals, effectively filtering out the unwanted frequencies.

2. Inductor in Series:
- The inductor in a choke L-section filter is connected in series with the load.
- When an AC signal passes through the filter, the inductor presents high impedance to the high-frequency components of the signal.
- This means that the inductor allows the low-frequency components (desired signal) to pass through while attenuating the high-frequency components (unwanted noise).

3. Capacitor Across the Load:
- The capacitor in a choke L-section filter is connected across the load, parallel to the inductor.
- The capacitor provides a low impedance path for the high-frequency components of the signal to bypass to ground.
- This helps in further attenuating the unwanted signals and reducing the noise in the output.

4. Working Principle:
- When the AC signal passes through the choke L-section filter, the inductor offers high impedance to the high-frequency components, forcing them to pass through the capacitor and get grounded.
- At the same time, the low-frequency components (desired signal) encounter low impedance from the inductor, allowing them to pass through the filter and reach the load.

5. Advantages of Choke L-Section Filter:
- Provides effective filtering of unwanted high-frequency signals or noise.
- Relatively simple and cost-effective design.
- Can be used in various applications, such as power supplies, audio systems, and communication circuits.

In conclusion, the choke L-section filter uses an inductor connected in series and a capacitor connected across the load to filter out unwanted signals or noise. The inductor presents high impedance to the high-frequency components, while the capacitor provides a low impedance path for these components to bypass to ground. This combination allows the desired low-frequency components to pass through the filter and reach the load.