Write the name of device $^{'} X^{'}$ in the following given diagram. Explain its working making its circuit diagram.

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Solution

A Full Wave Rectifier is a circuit, which converts an ac voltage into a pulsating dc voltage using both half cycles of the applied ac voltage. It uses two diodes of which one conducts during one half cycle while the other conducts during the other half cycle of the applied ac voltage.
So X in the circuit is Full wave Rectifier
Working :
Full wave rectifier utilizes both halves of each a.c input. When the p-n junction is forward biased, the diode offers low resistance and when it is reversing biased it gives high resistance. The circuit is designed in such a manner that in the first half cycle if the diode is forward biased then in the second half cycle it is reverse biased and so on.
Full wave rectifier is preferable than the half wave rectifier as the former increases efficiency in a shorter time and we get continuous output. However, a filter circuit is used to make it smoother.

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Write the name of device $^{'} X^{'}$ in the following given diagram. Explain its working making its circuit diagram.