Electric Motor Control
10th Edition
ISBN: 9781305177611
Author: Herman
Publisher: Cengage
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Chapter 50, Problem 5SQ
To determine
Explain the necessity of opening the disconnect switch in the Figure 50-2 when the machine is not in operation.
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3. Find the phasor current I。 in the circuit shown below. Be aware of the direction
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(15 pts)
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10.93 Figure 10.135 shows a Colpitts oscillator. Show that the
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A Colpitts oscillator; for Prob. 10.93.
(Hint: Set the imaginary part of the impedance in the
feedback circuit equal to zero.)
Determine (a) the average and (b) rms values of the periodiccurrent waveform shown in Fig. P8.3.
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Electric Motor Control
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- 10.68 Find the Thevenin equivalent at terminals a-b in the circuit of Fig. 10.111. ML 6 sin 10t V 492 Figure 10.111 For Prob. 10.68. 5913 + 410 + -2 F 20 1H Vo obarrow_forward10.79 For the op amp circuit in Fig. 10.122, obtain Vo. 5 cos 10³t V(+ Figure 10.122 For Prob. 10.79. 10 ΚΩ www 20 ΚΩ www 0.1 µF 40 ΚΩ 0.2 μFarrow_forward10.19 Obtain V, in Fig. 10.68 using nodal analysis. # ML ΖΩ j20 m 12/0° V 492 (+ ww www ' < ་ + V -j4 0.2V Figure 10.68 For Prob. 10.19.arrow_forward
- 10.47 Determine i, in the circuit of Fig. 10.92, using the superposition principle. ML 10 sin(t -30°) V 1Ω www Figure 10.92 For Prob. 10.47. 96 F 202 www 24 V +) 2 H m io 2 cos 3t www 42arrow_forward10.53 Use the concept of source transformation to find V, in the circuit of Fig. 10.97. 492 www -j30 j40 m + 20/0° V(+ j20 ΖΩ www -120 V ° Figure 10.97 For Prob. 10.53.arrow_forward2. Given you have a real valued signal with the following single sided baseband signal spectrum: ↑ ❘m(f)| A f=0 500 750 Sketch the frequency domain of |X(f)| given: a. x1(t) =m(t)cos(2**5000*) b. x2(t)=m(t)cos(2**600) Frequency (Hz)arrow_forward
- not use ai pleasearrow_forwardMatched filter in the frequency domain (1.5) (a) Consider the signal s(t) in 3(c). Assuming that the unit of time is a millisecond and the desired frequency resolution is 1 Hz, use the function contFT to compute and plot |S(f). (b) Use the function contFT to compute and plot the magnitude of the Fourier trans- form of the convolution s * SMF numerically computed in 3(d). Also plot for comparison |S(f)12, using the output of 5(a). The two plots should match. (c) Plot the phase of the Fourier transform of s✶ SMF obtained in 5(b). Comment on whether the plot matches your expectations.arrow_forwardFind Eigenvalues and Eigenvectors for the following matrices: [10 4 A=0 2 0 3 1 1 -3arrow_forward
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