Question

What is line regulation?

(a) The process of keeping Zener diode voltage constant inspite of changes in AC supply

(b) The process of keeping load voltage constant irrespective of the fluctuation in AC supply or the line voltage

(c) The process of keeping load voltage constant irrespective of fluctuation in load current

(d) The process of keeping Zener current constant irrespective of fluctuation in AC supply

I had been asked this question by my college professor while I was bunking the class.

Question is from Voltage Regulators topic in portion Regulators of Analog Circuits

Answer 1

The correct choice is (b) The process of keeping load voltage constant irrespective of the fluctuation in AC supply or the line voltage

Explanation: Line regulation is the process of keeping the load voltage constant, irrespective of fluctuation in AC supply or the line voltage. In line regulation, the load current is considered constant.