Question: In the figure below, the voltage V1 ranges from 15 to 35V. The load current is 20mA. The diode knee current is 2 mA, the breakdown voltage is 5V and power rating is 200 mW.^^ Calculate the range of R2 for the circuit to behave properly as a regulator.
Options
A : 400? =< R2 =< 500?
B : 450? =< R2 =< 500?
C : 454? =< R2 =< 500?
D : 454? =< R2 =< 600?
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