For which one of the following, 'Diodes' are generally used for?
Rectification
Diodes are semiconductor devices that allow current to flow in only one direction. This unidirectional current flow is the key to their primary use: rectification. Rectification is the process of converting alternating current (AC), which changes direction periodically, into direct current (DC), which flows in one direction. Diodes achieve this by 'blocking' current flow in the reverse direction, allowing only the positive or negative half-cycle of the AC signal to pass through, resulting in a pulsed DC output. While they can be part of more complex circuits for modulation or filtering, their fundamental role is rectification.
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