In terms of peak value, how does the output of a full-wave rectifier compare to that of a half-wave rectifier?

The output of a full-wave rectifier is indeed twice as great as that of a half-wave rectifier in terms of peak value.

In a half-wave rectifier, only one half of the input AC waveform is allowed to pass through, resulting in a peak output that is equal to the peak voltage of the input AC supply. This means that during each positive half-cycle of the AC input, the rectifier conducts and produces an output, while during the negative half-cycle, the output is zero.

In contrast, a full-wave rectifier utilizes both halves of the AC waveform, effectively doubling the frequency of the output waveform. This is achieved through either a center-tapped transformer or a bridge configuration, allowing for the conduction during both half-cycles. As a result, the peak output voltage of a full-wave rectifier is equivalent to the peak input voltage, but the average output voltage is higher because it includes both halves of the waveform.

Consequently, the peak value of voltage output from a full-wave rectifier is twice that of a half-wave rectifier, demonstrating a more efficient and effective conversion of AC to DC voltage.