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For the simple equivalent circuit of 0.017 m2 PV cell shown below, the reverse saturatoin current is I0= 4 * 10-11 A and at an insolation of 1-sun the short circuit current is Isc = 6.4 A. At 25 degrees C, find the following:
a. The open circuit voltage
b. The load current and the output power when the output voltage is V = 0.55 V
c. The efficiency of the cell at V=0.55 V
A tank of 0.52 m3 capacity is filled with steam at 2 MPa and 350oC. The tank and its contents are slowly cooled to 125oC. Answer the following questions assuming that there was a negligible volume change during the cooling process
A synchronous generator rated 1350 MVA at 0.9 pf, 22.5-kV, Xs=11.6% is connected to a power system through a 1500 MVA, 7.9% 24-kV/230-kV generator step up transformer. The power is generated into a 230-kV system.
An op-amp based amplifier has +/- 51 V supplies and a gain of -80.Over what input range is the amplifier linear. Find (a) the minimum and (b) the maximum values.
Assume you wanted to produce a circuit for which the output voltage was given by the expression Vout = -3A - 2B (A and B are variable input voltages). Show how this operation could be accomplished with a summing amplifier by drawing the circuit. Show..
Create the layout design for MOS NAND3 gate using a depletion-type transistor with VTL = -0.3V and enhancement-type transistors with VTO = 0.5V such that VOL is less than or equal to 0.1V. VDD = 2.5V , tox = 10nm and 2X = 0.6μm .
Design a four-bit counterlike circuit controlled by the input w. If w=1, then the counter adds 2 to its contents, wrapping around if the count reaches 8 or 9. Thus if the present state is 8 or 9, then the next state becomes 0 or 1, respectively.
A three-bit Johnson counter is clocked with pulses at a 120 MHz rate. What will be the pulse frequency of the output of the last flip-flop in the chain. Ten pulses are applied to a four-bit asynchronous counter. If the counter state was 0000 befor..
Determine the range of values of K such that the system is stable for s(s²+4s+10)+ k (s+5)=0
Finding the periodicity in N of the discrete time signal x(n) = Cos(3pi*Ts.n + pi/4) and then plotting the discrete signal. From this the condition on the sampling period is determined
Consider a 3 phase 25 kVA, 440 V, 60 Hz ac generator operating at full load (that is, delivering its rated kVA) under balanced steady state conditions. The ac generator has 3 stator windings that output balanced 3 phase voltages. It is usual to..
question 1consider two digital sequenceshere m is a positive integer and is a value in the intervala using the
Draw the synchronous generator's per phase voltage and current phasor diagram and calculate the per phase output voltage and determine the voltage dropped across the synchronous impedance
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