Question

Normally a capacitor is connected across the output terminals of a rectifier to

• A. convert AC to DC
• B. convert DC to AC
• C. to get a varying DC output
• D. to get a steady DC output \bigskip

Hint:

Capacitors smooth out ripple in the rectified current, providing a more stable DC output.

Answer 1

The Correct Option is D

In a rectifier circuit, the capacitor is used to smooth out the variations in the rectified current, making the output steady. This helps in converting the pulsating DC into a smooth, steady DC. 

Step 1: The capacitor connected across the rectifier output helps in filtering the ripple and gives a steady DC output. This is essential for powering devices that require constant DC voltage. Thus, the correct answer is to get a steady DC output.