In a full wave rectifier, the current in each diode flows for
half cycle of the input signal
In a Full wave rectifier, the current in each diode flows for half cycle of the input signal.
When an AC input signal is given, during the positive half cycle, the diode D1 conducts and during negative half cycle, diode D2 conducts. Hence each diode will conduct for half cycle.
Schematic of a full wave rectifier
The output waveform of a full wave rectifier is shown below.