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Figure P3.23 represents a temperature measurement system, where temperature T is linear lyrelated to the voltage source
In practice,
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Principles and Applications of Electrical Engineering
- The circuit shown in Figure P3.35 is a simplifiedDC version of an AC three-phase electrical distributionsystem.VS1 = VS2 = VS3 = 170 VRW1 = RW2 = RW3 = 0.7Ω R1 = 1.9Ω R2 = 2.3Ω R3 = 11 ΩTo prove how cumbersome and inefficient (althoughsometimes necessary) the method is, determine, usingsuperposition, the current through R1.arrow_forwardDetermine the value of ZL in the circuit of Figure Q3(a) for maximum power transfer.arrow_forward1.What factor(s) can contribute to differences between ideal theoretical values in a circuit and values measured in actual practice? A) Measurement inaccuracy B)Component tolerances C)Both (a) and (b). D)Neither (a) nor (b). 2.What maximum range of values could resistor R3 have and still be within tolerance assuming R3 is a 10% resistor? A) 3296.7 – 3303.3 Ω B) 2970 – 3630 Ω C) 3267 – 3333 Ω D) 2967 – 3633 Ω 3.A voltage of one volt applied across a resistance of one ohm produces a current of one ampere. What happens to the current if the voltage is doubled and the resistance is halve? A)It doubles. B)It increases four times. C)It increases three times. D)It remains the same. In Question 3, what is the current in amperes if the voltage is halved and the resistance is doubled? A) 1 ampere B) 33 ampere C) 5 ampere D) 25 amperearrow_forward
- find Rt, It, Pt, P1, P2, P3P4,P5,P6arrow_forwardThe equivalent circuit of Figure P3.73 hasVT = 35 V RT = 600Ω If the conditions for maximum power transfer exist,determinea. The value of RL.b. The power developed in RL.c. The efficiency of the circuitarrow_forwardVbatt=25 VC1=90 ?CC2=75 ?CC3=60 ?CR1=160 ΩR2=120 Ωt2=21.6 msect3=27 msecConsider the circuit shown below which shows a battery connected to some resistors and capacitors along with some switches which will be toggled opened or closed at different times. The components are listed above. The capacitances are in microFarads (?F), the resitances are in Ohms (Ω), and the times are in milliseconds (msec). A stopwatch is started at time t1=0 ms. At that time, switch S1 is closed and all other switches are open and the capacitor is allowed to charge up.(a). (i)What is the charge (in uC) on C1 at the time the stopwatch reads t2=21.6 ms?a)3690 b)1520 c)5710 d)2630 e)683 f)1750 (a).(ii)What is the current (in mA) through R1 at t2=21.6 ms?34.9 30.4 114 13.6 73.6 52.4 (b)(i)What is the voltage (in V) across R1 at t2=21.6 ms?8.37 5.58 2.18 11.8 18.2 4.85(ii). What is the voltage (in V) across C1 at t2=21.6 ms?63.2 29.1 40.9 7.57 19.4 16.9(c). (i) What is the energy (in mJ) in C1 at t2=21.6 ms?6.63…arrow_forward
- Problem 3.4 For each of the circuits shown in Fig. P3.2 a.) find the equivalent resistance seen by the source, b.) find the power developed by the source.arrow_forwardA potential difference of V = 58.0 V is applied across a circuit with capacitances C1 = 4.7 nF, C2 = 3.1 nF, and C3= 1.3 nF, as shown in the figure.a) What is the magnitude and sign of q3l, the charge on the left plate of C3 (marked by point A)? b) What is the electric potential difference, V3, across C3? c) What is the magnitude and sign of the charge q2r, on the right plate of C2 (marked by point B)?arrow_forwardA 0.1-μF capacitor has a parasitic series resistance of 10 Ω, as shown in Figure P3.39.Suppose that the voltage across the capacitance is v c ( t )=10 cos( 100t ); find the voltageacross the resistance. In this situation, to find the total voltage v( t )= v r ( t )+ v c ( t ) to within 1percent accuracy, is it necessary to include the parasitic resistance? Repeat if v c ( t )=0.1 cos(10 7 t ).arrow_forward
- The circuit shown in Figure-2 is at steady state before the switch closes at time t = 0. The input to the circuit is the voltage of the voltage source, 12 V. The output of this circuit is the voltage across the capacitor, v(t). -Use Matlab Simscape Electrical to build and plot the output, v(t), as a function of t (by using scope). Use the plot to obtain an analytic representation of v(t) for t > 0. Hint: We expect v(t) = A + Be–t/τ for t > 0, where A, B, and τ are constants to be determined. Modify the circuit given in this example (build figure-2) https://www.mathworks.com/help/physmod/simscape/ug/operating-point-rlc-transient-response.html You will obtain a graph as figure 2-b and by using graph and substituting three ‘t’ values to v(t) then you can find A, B and τ.arrow_forwardA field party in Antarctica is using a tent that has been equipped with a small outdoor gasoline generator. The generator’s Thevenin equivalent circuit has V T of 120 V DC and the equivalent resistance, R T , of 10 Ω. There are two resistive heaters inside the tent: R 1 = 10 Ω and R 2 = 120 Ω , that can be connected to the generator separately, in series, or in parallel. For the highest heater power output, how should the heaters be connected to the generator?arrow_forwardElectrical Engineering A cylindrical hollow pipe is made of steel (μr = 180 and σ = 4 x10^6 S/m).The external and internal radii are 7 mm and 5 mm. The length of the tube is 75 m.The total current I(t) flowing through the pipe is:I(t)= 8 cos(ωt) with ω=1200π rad/sDetermine:a) The skin depth.b) The resistance in AC.c) The resistance in CD.d) The intrinsic impedance of the good conductor. Remember that:arrow_forward
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