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Which among the characteristics of the crystal diode is used for rectification?

  • Forward characteristics of the crystal diode is used for rectification.
  • A crystal diode is a two-terminal electronic component that allows current to flow in only one direction.
  • When a voltage is applied in the forward direction (positive voltage on the anode and negative voltage on the cathode), the diode allows current to flow easily, and it behaves like a closed switch.
  • When the voltage is applied in the reverse direction, the diode acts as an open switch, and very little current flows through it.
  • This property of the crystal diode makes it suitable for rectification, which is the process of converting AC (alternating current) to DC (direct current).
  • By connecting the diode in series with the load, the AC signal is rectified to a unidirectional DC signal.
  • During the positive half-cycle of the AC input, the diode conducts and allows current to flow through the load, while during the negative half-cycle, the diode blocks the current flow.
  • As a result, the output waveform becomes a unidirectional DC signal, which can be further smoothed by a filter capacitor.