63. The zener diode in the current shown in figure (A) has

63. The zener diode in the current shown in figure (A) has the characteristics shown in figure (B). If R₂ is the lowest load resistance to be used for regulated supply. Then to get load regulation, R₁ must be:

Given that I_{z (max)} = 10 mA

and from figure I_L =	V₀
	R₂

Now, for good load regulation

greater than	V₀ + 0·01R₂
	(V_in – V₀)R₂

greater than	(V_in – V₀)R₂
	V₀ – 0·01R₂

less than	(V_in – V₀)R₂
	V₀ + 0·01R₂

less than	V₀ + 0·01R₂
	(V_in – V₀)R₂