E7D01 — Amateur Extra Class

E7D01 : How does a linear electronic voltage regulator work?
A It has a ramp voltage as its output
B It eliminates the need for a pass transistor
C The control element duty cycle is proportional to the line or load conditions
D The conduction of a control element is varied to maintain a constant output voltage
Correct Answer: The conduction of a control element is varied to maintain a constant output voltage