Derive the expression for the thermal-equilibrium concentration of electrons [i.e n0 Nc exp {-(EC-EF/kT)}] using the equation n(E) = gc(E) × f(E).

A DA Vm sin cor For the following single-phase full-wave diode rectifier, Vm = 311 V, R = 1 N, L = 0.002 H and the source frequency is given as 50 Hz. Welding current Find the THD. Note: You can consider calculating the effective value of the welding current and the effective value of the fundamental wave of the welding current. ww

It is required to grade a string having seven suspension insulators. If the pin to earth capacitance are all equal to C, determine the line to pin capacitance that would give the same voltage across each insulator (C1, C2, …….C6)  of the string.

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

For the diode circuit to the right 8002 a V 1002 b 40mA 0.001V' a) To the left of points a and b, find the load-line relation by expressing the current, I with voltage, V. HINT: Write KCL equation for the circuit diagram and write I in terms of V from that KCL equation. This will be your load-line equation. b) Assume the diode has the following characteristic, using the load-line relation you found in (a), determine the operating voltage, V and current, I for the circuit. ip (mA) 20 15 10 5 Vp (V) 3.0 0.5 '1.0 1.5 2.0 2.5

1) Diode half-wave rectifier a) Consider the half-wave rectified sinewave voltage waveform at the right. What is the DC voltage and RMS voltage in terms of Vpeak? Remember: Vp peak ann T/2 1 Vay = DC = v(0)de avg T Sv(t)dt and V = Hve v² (t)dt T

Find Voutput & find the ripple voltage :)

For the diode circuit to the right 8002 a V' V 40mA (T 1002 0.001V' a) To the left of points a and b, find the load-line relation by expressing the current, I with voltage, V. HINT: Write KCL equation for the circuit diagram and write I in terms of V from that KCL equation. This will be your load-line equation.

A 1N4733 zener diode has a Zz of 7 ohms. Considering the data of the manufacturer's hona, the Vz = 5.1 V with a test current, Iz, of 49 mA. What is the voltage across the zener terminals when the current is 65 mA? When the current is 25 mA? Include the graph where these values ​​are shown.

Determine the reading of the ideal voltmeter connected across a silicon diode shown in figure. 1 k2 D 5 V Assume the forward voltage of diode to be 0.7 V. Find also the current through the diode.