Question Pool -- Category E7D

What is one characteristic of a linear electronic voltage regulator?
A.
It has a ramp voltage as its output
B.
The pass transistor switches from the "off" state to the "on" state
C.
The control device is switched on or off, with the duty cycle proportional to the line or load conditions
D.
The conduction of a control element is varied in direct proportion to the line voltage or load current

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