For a given sample-and-hold circuit, if the value of the hold capacitor is increased, then

The diodes and capacitors in the circuit shown are ideal. The voltage v(t) across the diode D1 is

The circuit shown in figure is best described as a

For full wave rectification, a four diode bridge rectifier is claimed to have the following advantages over a two diode circuit:

(1) less expensive transformer

(2) smaller size transformer, and

(3) suitability for higher voltage application.

Of these,