What are the minimum and maximum values of current flowing in the variable load resistor ? Given the zener break-down voltage Vz = 10 V , Izk = 0, and Izmax = 32 mA.

A. 8 mA and 35 mA

b

8 mA and 40 mA

c

Need to know the load resistance to determine the values.

12.5 mA and 40 mA

When silicon is doped with either a pentavalent or a trivalent impurity its conductanc will ________.

		be stable against variation due to temperature
		decrease
		increase
		None of the above