Refer the following figure. If a bypass capacitor is connected across RE, the value the resistance, looking in at the base, is equal to ------. +20 V Rc $2.5 kn 1 uF HEo Vout 22 kn 1 uF Vin HE Poc -Ba- 100 RE 500 n O a. 5 kn O b. 416 2 O . 50 kn O d. 500 N
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ELECTRONICS LAB COURSE
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- You are working as an electrician in a large steel manufacturing plant, and you are in the process of doing preventive maintenance on a large DC generator. You have megged both the series and shunt field windings and found that each has over 10 M to ground. Your ohmmeter, however, indicates a resistance of 1.5 across terminals S1andS2. The ohmmeter indicates a resistance of 225 between terminals F1andF2. Are these readings normal for this type machine, or is there a likely problem? Explain your answer.Find the margin of K to keep the system shown in figure N°1 stableThe AC Bridge shown below is used to measure an unknown inductance, Lx and its internal resistance, Rx. The Bridge parameters are R1 = 20,000 ohms, R2 = 50,000 ohms, C2 = 0.003 μf, ω= 105 radians per sec. C1 is adjustable from 10 pf to 150 pf, and R3 is adjustable from 0 to 10,000 ohms. At Balance,I. Derive expressions for Rx and Lx in terms of ω, R1, R2, R3, C1, and C2.II. Determine the largest values of Rx and Lx that are measurable with the given parameters.
- 1) Use the superposition principle to determine the current in the load resistance RL, in the dc circuit of Figure QA1(a) 2) The current through a pure capacitor is given byi = 28.28cos(314t).Derive an expression for the voltage across the capacitor in the form v = Vm cos(wt) and comment on your answer. 3)Estimate the value of the current I and the voltage V in each of the circuits shown in Figure QA1(c) and justify your method of estimation.I NEED THIS ASAPPPP!!!!!!1 1.) For the circuit shown in Figure 3 with the output shown, determine the following parameters: Vcc = 44; VB = 20; VD =1.3; IH = 4.6mA; R = 10kΩ; Vmax Vmin Current in mA through the 10-kΩ resistor at t = to. Current in mA through the 10-kΩ resistor at t = t1. Current in mA through the 10-kΩ resistor at t = t2. Current in mA through the Shockley diode 1.) (a) ________ V(b) ________ V(c) ________mA(d) ________ mA(e) ________ mA(f) ________ mAIn the circuit given in the figure VT = 25mV, | VBE | = 0.7V, R1 = 712.91Kohm, R2 = 43.27Kohm, R3 = 2.29Kohm, R4 = 0.98Kohm, VCC = 10.00V, VEE = -4.00V, VA = 10.06V, Beta = 137.00, Rs = 38.43ohm, Ry Calculate the IC current according to = 16.55Kohm, Ri, R0 and the voltage gain (V0 / V1) according to the Source by full analysis When making your transactions, 2 steps will be taken after the point. Select the closest option according to +/- 10% margin of error. There is only one correct answer to the question.
- A 750-ohm resistor, an uncharged 1.50 uF capacitor, and a 8.00-V emf are connected in series. (a) What is the current after one time constant? (b) What is the voltage on the capacitor after one time constant?A coil of inductance 1 henry and negligible resistance is connected in series with a capacitancr of 10^-6 farad and an emf E volts. Taking Q=I=O at time t=0, find th3 charge Q anf the current I when t= 0.001 see if (a) E= 100 volts, (b) E= 100sin500t, (c) E= 100sin1000tQUESTION TEXT A potentiometer consisting of a wire of length = 10 cm has a source of emf, ɛ = 15V connected across it. When a standard cell with emf V = 6V, in series with a voltmeter, is connected at one end of the wire and at a distance L along the wire the voltmeter circuit is in balance and the voltmeter reads zero. What is the value of the balance length L? Select one: a. 1.5 cm b. 4.0 cm c. 6.0 cm d. 2.0 cm
- For circuit shown ini the pic. below, assuming VBE = 0.7 V.Determine: (a) IBQ(b) VB(c) ICQ(d) VE(e) VC(f) VCEQCan someone help with this task? Determine ?- inductive resistance- capacitive resistance- total resistance- total complex resistanceThe AC Bridge shown below is used to measure an unknown inductance, Lx and its internal resistance, Rx. The Bridge parameters are R1 = 20,000 ohms, R2 = 50,000 ohms, C2 = 0.003 µf, w = 105 radians per sec. C1 is adjustable from 10 pf to 150 pf, and R3 is adjustable from 0 to 10,000 ohms. At Balance, I. Derive expressions for Rx and Lx in terms of w, R1, R2, R3, C1, and C2. II. Determine the largest values of Rx and Lx that are measurable with the given parameters.