In the given circuit if the power rating of Zener diode is 
, the value of series resistance 
to regulate the input unregulated supply is:
A
B
C
D
None of these
Text Solution
Verified by ExpertsThe correct answer is:
D
across 
Current through the load resistor
Maximum current through Zener diode
And minimum current through Zener diode
Similarly
And 
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