In a rectifier circuit, what is the purpose of a filter capacitor?

₹0.0

Question: In a rectifier circuit, what is the purpose of a filter capacitor?

Options:

Correct Answer: To smooth out the rectified output

Solution:

The filter capacitor in a rectifier circuit smooths out the rectified output by reducing voltage ripple.

In a rectifier circuit, what is the purpose of a filter capacitor?

In a rectifier circuit, what is the purpose of a filter capacitor?

Step 1: Understand that a rectifier circuit converts AC (alternating current) to DC (direct current).
Step 2: Know that the output from a rectifier is not a smooth DC; it has fluctuations called 'voltage ripple'.
Step 3: Learn that a filter capacitor is added to the circuit to help smooth out these fluctuations.
Step 4: Realize that the filter capacitor stores energy when the voltage is high and releases it when the voltage drops.
Step 5: Conclude that by doing this, the filter capacitor reduces the voltage ripple, making the output more stable.

Filter Capacitor Function – The filter capacitor in a rectifier circuit smooths out the rectified output by reducing voltage ripple.