Calculate the maximum value of Rs in the given circuit to give 12 V re – McqOptions

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1.	Calculate the maximum value of Rs in the given circuit to give 12 V regulated output from an unregulated supply of 28 V for a maximum load current of 150 mA (Zener voltage is 12 V and knee current of Zener diode is 10 mA)
A.	110 Ω
B.	106.67 Ω
C.	120 Ω
D.	100 Ω
Answer» E.

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