Concept:Rectification is the electrical process of transforming bidirectional alternating current (\( \text{AC} \)) into unidirectional pulsating direct current (\( \text{DC} \)) utilizing non-linear conducting elements like diodes.
Formula:$$\text{Efficiency } \eta = \frac{P_{\text{dc}}}{P_{\text{ac}}} \times 100\%$$
Solution:- Alternating current periodically alternates its polarity and direction over time.
- A rectifier uses the asymmetric conductivity of diodes to restrict current flow to a single direction, resulting in a single-polarity output.
Why other options are incorrect:- Option A: Converting \( \text{DC} \) to \( \text{AC} \) is known as inversion (performed by an inverter).
- Option B: Increasing signal amplitude without changing waveform direction is amplification.
- Option D: Eliminating harmonic fluctuations and AC ripples is referred to as filtering or smoothing.
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