The value of the resistor, R S , needed in the DC voltage regulator circuit shown here, equals:

Question

The value of the resistor, R S , needed in the DC voltage regulator circuit shown here, equals:, V i + V L n + 1 I L, V i - V L n I L, V i + V L n I L, V i - V L n + 1 I L

MARKS App · Accepted Answer

Across zener diode V L = c o n s t a n t ∵ V i = V L + n + 1 I L R S ⇒ V i - V L = n + 1 I L R S ⇒ R S = V i - V L n + 1 I L

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