In the circuit shown if B = 60, if RB = 40 kQ and Rc = 1.25 k0, then the voltage gain Vo/Vs =: V*= +5 V E=0,80 mA CE RB Cc2 RC R=4 k2 V=-5 V
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- Problem 2 Dị and D2 are modeled using a battery of 0.6V. 'Vin' is a sinusoidal signal with 1 kHz frequency and amplitude voltage of 10V, 1. Find 'Vout' as a function in 'Vin'? 2. Plot 'Vout’ versus 'Vin +5 V { 2kn 2kN Vin o VoutChannel 1 and Channel 2 Time (ms) Phase problem. In the above figure the time base is 1 ms/div, what is the period of the signal from Channel 1 in ms? What is the phase difference (in degrees) between the signals in Channel 1 and Channel 2? ms, _degrees Voltage (arbitrary units)Consider the following circuit used to provide power for an induative RL load. The input voltage is V-100V and the load has a 50 impedance value. The thyristor is working at a frequency fs = 2 kHz. The discharge current is to be limited to 40A and the required dv/dt is 40V/us. If the value of Ce is equal to 0.14uF, then the snubber losses are equal to: R. V. Select one: O a 5.4W O b. 7.4W 1.4W Od. 3.4W
- Given A = 2ax - 4ay + Azaz and B = 4ax + %3D 7ay-5az. If the angle between A and B is 65 degrees, what would be the possible values of Az? * -0.42 and -9.1 0.54 and -0.81 O -7.65 and 3.24 O 6.52 and -0.35(b) Draw the circuit diagram of step-down chopper, also draw the waveforms of source voltage Vs and output voltage V. for duty ratio a = 0•4 and time period T = 10 us.A certain impedance is given by 1012° N. Does the current lead or lag the voltage, and by how many degrees? Fill in the blanks. The current the voltage by
- 1. For the circuit in Figure 1: a) Calculate the total impedance Ztot of the below circuit b) Calculate the total current Itot and branch currents IR, Ic and IL. Calculate voltage Uc over the capacitance C. c) Is the circuit in resonance? How the parallel resonance affect inductance and ca- pacitance currents IL and Ic? E=230V 20°, R₁ = 10 Q, R₂= 2009, C= 100µF, L = 280mH, ƒ= 30Hz (Answers Ztot = 210 + 3.9j №, I =4.13A Z 90.1°) Present all values in polar form (x 2 yº) E I tot R₁ R2 IR Ic CU Į₁ LErerrises: IA platinum oil has a resifance of 3-14k r at go°C and 3.747JV at 100°C.- Fin'd the resistance at o'C ond the kmp -creff. of resifonce af 40°C 2. A pofential difference of r5oV is apphed to a field wnding at 15°C and the currend is SA. What will be the mean fempouafure of the winiding when currend has falen to 3.91A, apphedvrltage being constant Aasume s =p7.5. 3. A cril has a resi fance of 182 when its mean femperature is 20°C and 20v when ik mean femperature s 50°C. Frid is mean femperature rise when ik resotonce is 21JL and the sorrandinig femperature is i5°C. A cril of a relay takes a curre of 0.12 A when it is at the vem insbi o al 4. A jemperature of is'C ond canneckerdacms a oV supply If the minimum operating current of the relay is 0.1 A, colculate the femperature above ohich the relay will fail to operate when connected ti the same supply. Resi tncenfemp.coefficrenf of the cril makria] is o.0043 per °C at 0°C.6-10) Using what you have learned constructing the phasor diagram for the LRC series circuit, construct a diagram for the LRC parallel circuit. Derive an expression for the circuit impedance Z and the phase angle φ between the applied emf and the current supplied by the emf. HINT: in the series circuit, the current through all four components was the same. Ask yourself what the components in this arrangement have in common.
- Sarch am of Instrument docs.google.com/forms/d/e/1FAlpOLSdofjdKGUd12Mv39g0KmDw 00 01 Question Five AC ridge Find the 2wth if, 21 (Rx-3 ohm Cx 000567 forad), 22 (ks- otan Ce-0.00432 farad).23(3-5 ohm), F 1000 Hz. null 33-p.03 Back SubmitFor the network in the figure: a. Determine re. b. Find Av = Vo / Vi. C. Calculate Zi. and Zo.Eg Q.1/ Prove that: ni = /Nc Ny e -GKT %3D Using Eg = Ec- Ev