In figure what is the voltage needed to maintain 15V across the load resistance R_(L) of 2K, assuming that the series resistance R is 200Omega and the zener requires a minimum current of 10mA to work satisfactorily? What is the zener rating required?

In figure what is the voltage needed to maintain 15V across the load r

1.	In figure what is the voltage needed to maintain 15V across the load resistance R_(L) of 2K, assuming that the series resistance R is 200Omega and the zener requires a minimum current of 10mA to work satisfactorily? What is the zener rating required?
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In figure what is the voltage needed to maintain 15V across the load resistance R_(L) of 2K, assuming that the series resistance R is 200Omega and the zener requires a minimum current of 10mA to work satisfactorily? What is the zener rating required?

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