Standard task grading scale from 2 to 5.
1. Knowing that power dissipated in R7 is 8 mW, find the value of V1. (17 points)
L1 = 5mH, C = 10uF
R1 = 1Ohm
R7 = 2kOhm
R5 = 5kOhm
2. In the circuit, the breakdown voltage of Zener diodes ZD1 and ZD2 is equal to 3V. Find the value of the current flowing through the resistor R9. Assume that the voltage across a forward-biased conducting diode is 0.7V. (23 points)
R9 = 3Ohm
Vs = 15V
ZD1 = 2D2
R10 = 2kOhm
V4 = -V4
3. In the circuit, the current gain of the transistor T2 is 100. Find the value of the voltage V. Assume that Vr = 0.7V. (20 points)
Rb = 10kOhm
Vt = 3V
Re = 100Ohm