The role of a capacitor at the output of the bridge rectifie

The role of a capacitor at the output of the bridge rectifier in an AC to DC converter is

to regulate the DC voltage.

for smoothing the ripple.

to eliminate the transformer.

to double up the DC voltage.

Solution

The function of this capacitor, known as a reservoir capacitor (or smoothing capacitor) is to lessen the variation in (or \'smooth\') the rectified AC output voltage waveform from the bridge. There is still some variation, known as ripple.

So,the answer should be for smoothing the ripple.