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- Change the following normally open elements from the de-energized position to the energized position.Determine the voltage across resistor R3 when E=14V, R1=133ohm, R2=186ohm, R3=188ohm, and with the diode being silicon.It will keep the VL voltage on the RL at 8v and will not exceed the maximum power of the zener diode.Find the value range of the input voltage Vi in the figure. Rs=210ohm RL=2.9kohm E1=16v E2=2V R2=9K
- You are told that the approximate diode knee voltage is 750mV, but you need to know for sure. You are told that the diode's saturation current is I, = 2.27fA. (2.27x10-15 A) and V=25mV. Determine VD. Iterate until you have the answer to 2 significant figures.Calculate the load resistance RL(min) and RL(max) across the zener diode to maintain VL at 12 V for IL to vary from 0 to 200 mA. (a) 0, infinity (b) 60, 60 (c) 60, infinity (d) infinity, 60Diodes Si diodes will be considered. Which of the following is wrong I. D3 diode blocking. II. Diode D3 is on. III. Diode D4 is conducting. IV. Diode D4 is in blocking.
- Consider the following circuit with VI = 6 sin(300t), R= 2 k ohm V1 = 3V, V2 = -1V,Vy = 0.7V.a) Determine the condition on VI for the diode to be ON.b) Plot VI and VO versus time for one period.c) Plot VI and ID (current through diode) versus time for one period.Q#3 (b) Load current changes from 0-200 m A at 10 v input voltage range from 15 -20v Zener diode stabilized maximum current OF Two digit of your roll number m A Find Rs . shown in figure #3 roll no 52Which conditions satisfy an ideal diode?a. ID = 4 mA, VD = 0 V b. ID = -4 mA, VD = 0 V c. ID = 4 mA, VD = 2 V d. ID = -4 mA, VD = 2 V
- 11. DIAC and TRIAC are similar in that both devices. a. Can use breakover voltage b. can be used in ac circuits c. are bidirectional d. all of the above 12. These are semiconductor devices that are primarily used in electronics as electronically controlled switches a. Diodes b. Transistors c. Vacuum Tubes d. Thyristors 13. If an SCR is suspected of not functioning properly, it should be tested a. with power off b. with multimeter set to the diode or high resistance function c. With the SCR leads isolated d. All of the above 14. A thyristor that looks like two back-to-back 4 layer diodes is the a. SCR b. Triac c. SCS d. DIAC 15. A device that has an unstable negative resistance region is the a. UJT b. SCS c. TRIAC d. DIACFind the voltage(E) and current(I) of the diode in 3rd approximation. The Diode has 0.7V with an internal resistance of 2 ohms. Choose the letter of the correct answer. 1. Current a.) 8.5mA b.) 1.4mA c.) 7.12mA d.) 9.2mA 2. Voltage a.) 0.68 b.) 0.7V c.) 1V d.) 8.3VWhat is power dissipation in the Zener diode as shown for (a) RL = 2kΩ (b) RL = 4.7kΩ (c) RL =15 kΩ (d) RL =∞