In Fig. P4.15, What is the value of lo? (R1=4.1 kQ, R2=54 kQ, Vs=5 V) 10 www OV R2 R₁ www 015 Figure P4.15 Notes on entering solution: . Enter your solution in milliAmpere(mA) • Enter your solution to the nearest thousandth of a milliAmpere(mA) Give your answers with a positive or negative sign • Do not include units in your answer .ex. 5mA is entered as 5.000

For the last two parts, use the diagram to the right. d. V = -1.14V, R = 62, and the voltage across the diode is equal to 0.68V when it is "on". i V = e. V = -0.16V, R = 52, and the voltage across the diode is equal to 0.64V when it is "on". V= i = Vo ww R≤ KHI (Enter at least 3 significant digits. Each answer must be within 1% to be marked correct.) + ひ -

A diode is a two-terminal, electronic device made using semiconductors that is designed to prevent current from flowing in a particular direction. The symbol is a triangle pointing in the direction that (positive) current is allowed to flow and a wall preventing (positive) current from flowing in the opposite direction: 1: A diode has two modes, "on" and "off". When "on", current flows, and when "off", no current flows. We generally view diodes as either "ideal" or "modeled", as described below. "Ideal" view of a diode + The "ideal" diode is either a short circuit or an open circuit. Specifically, when the voltage across its terminals is negative, no current flows, and when current flows, there is zero voltage across its terminals, as pictured below: Diode "Modeled" view of a diode +51 Diode V Ideal Diode "Off" i=0| + U≤0 + I Therefore, with current i and voltage v defined as shown on the left above, for an "ideal" diode: • Current i cannot be negative. Voltage v cannot be positive. .…

Q2: Solve for only one of the followings: A\ Determine ID1, ID2, VD1 and VD2, using ideal diode model 15 Q 10 V 10Q W- W- + Vp2 30ias. 15 V Rhimt 20 V B\ Assume D1 and D2 are Si diodes. Find ID1, ID2, VD1, VD2 and IO in the circuit below, the practical model. IDI Ip: W- 52 + Vpi - RLimb lo sa 10 V Q3\A: Determine the values of VDC, Vr(out) , and IL for the power supply shown belo Explain whether we can use the Zener diode in this circuit as the voltage regulator or not? رقم الصفحة 2/1

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A silicon diode described by the Shockley equation has n = 2 and operates at 150° C with a current of 1 mA and voltage of 0.25 V. Part A Determine the current after the voltage is increased to 0.32 V. Express your answer to three significant figures and include the appropriate units. HA ? ip = Value Units

Please help prove the 3 equations in the second attached image.

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