1. A voltage regulator with a no-load output dc voltage of 12 V is connected to a load with a resistance of 10 ohms. If the load resistance decreases to 7.5 ohms, the load voltage will decrease to 10.9 V. What is

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1.
A voltage regulator with a no-load output dc voltage of 12 V is connected to a load with a resistance of
10 ohms. If the load resistance decreases to 7.5 ohms, the load voltage will decrease to 10.9 V. What is
the percent load regulation, and calculate the load current.
Determine the amount of anode voltage needed to turn on the PUT in the circuit as shown. Also
determine oscillating frequency. Vy = 0.8 V, ly = 15 mA, lp = 36 uA.
2.
1₁
R₁
• 470 ΚΩ
+18 V
AO
0.22 μF
WI
VG = +9 V
G
-ok
R4
• 22 Ω
R₂
• 10 ΚΩ
+1₁
R3
10 ΚΩ
Transcribed Image Text:1. A voltage regulator with a no-load output dc voltage of 12 V is connected to a load with a resistance of 10 ohms. If the load resistance decreases to 7.5 ohms, the load voltage will decrease to 10.9 V. What is the percent load regulation, and calculate the load current. Determine the amount of anode voltage needed to turn on the PUT in the circuit as shown. Also determine oscillating frequency. Vy = 0.8 V, ly = 15 mA, lp = 36 uA. 2. 1₁ R₁ • 470 ΚΩ +18 V AO 0.22 μF WI VG = +9 V G -ok R4 • 22 Ω R₂ • 10 ΚΩ +1₁ R3 10 ΚΩ
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