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Use the LED forward voltage drop that you measured in ECE 112 lab for the Green LED.The Zener Diode, D1 and D3, has a reverse breakdown voltage of 4.7 volts

and a forward voltage drop of.7 volts. Q1 has a VpE of.7 volts. How much current is going throught he Green LED if the Beta for Q1 is 100? How much current is going through the Green LED if the Beta is 300?

Fig: 1

Fig: 2