The Analysis and Design of Linear Circuits 6th Edition by Thomas, Roland E.; Rosa, Albert J.; Toussaint, Gregory J. | Holooly

Circuit Analysis

The Analysis and Design of Linear Circuits

1008 SOLVED PROBLEMS

Question: 8.67

MATLAB efficiently performs phasor calculations with complex numbers, but it can also be used to better visualize the concept of a rotating phasor. Recall that a sinusoidal signal is the real part of a phasor times e^jωt, where the ω term represents a rotation. The following MATLAB code demonstrates ...

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The solution is presented as the following MATLAB ...

Question: 16.29

In Figure P16-28 the load voltage is |VL| = 440 V(rms) at 60 Hz. The load ZL draws an apparent power of 880 VA at a lagging power factor of 0.7. Find the value of the capacitance required to raise the power factor of the parallel combination to 0.95. Repeat for a corrected power factor of unity. ...

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Use MATLAB to perform the calculations.

Question: 16.28

In Figure P16-28 the load voltage is |VL| = 5 kV (rms) at 60 Hz and the load ZL draws an average power of 10 kW at a lagging power factor of 0.725. Find the value of the parallel capacitance needed to raise the power factor of the combination to unity. ...

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Use MATLAB to perform the calculations.

Question: 16.27

A 60-Hz voltage source feeds a two-wire line with ZW = 0.6 + j3.4 Ω per wire. The load at the receiving end of the line draws an apparent power of 5 kVA at a leading power factor 0.8. The voltage across the load is 500 V(rms). Find the apparent power produced by the source and the rms value of the ...

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Use MATLAB to perform the calculations.

Question: 16.25

In Figure P16-25 the voltage across the two loads is |VL| = 4.8 kV (rms). The load Z1 draws an average power of 12 kW and a lagging power factor of 0.75 lagging. The load Z2 draws an apparent power of 15 kVA and a lagging power factor of 0.8 lagging. The line has an impedance of ZW = 10 + j54 Ω per ...

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Use MATLAB to perform the calculations.

Question: 16.26

The two loads in Figure P16-25 draw apparent powers of |S1| = 16 kVA at a lagging power factor of 0.8 and |S2| = 25 kVA at unity power factor. The voltage across the loads is 3.8 kV and the line has an impedance of ZW = 5 + j26 Ω per wire. Find the apparent power produced by the source and the rms ...

Verified Answer:

Use MATLAB to perform the calculations.

Question: 16.24

The complex power delivered to the load ZL in Figure P16-21 is 20 + j30 kVA. The source produces an average power of 21 kW and the line has an impedance of ZW = 0.6 + j5 Ω per wire. Find the reactive power produced by the source. ...

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Use MATLAB to perform the calculations

Question: 16.23

The complex power delivered to the load ZL in Figure P16-21 is 20 + j15 kVA. The load voltage is 2 kV(rms) and the line has an impedance of ZW = 2 + j12 Ω per wire. Find the magnitude of the source voltage and the complex power produced by the source. ...

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Use MATLAB to perform the calculations.

Question: 16.22

Repeat Problem 16-21 with the power factor increased to 0.95. ...

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Use MATLAB to perform the calculations.

Question: 16.21

The average power delivered to the load ZL in Figure P16-21 is 40 kW at a lagging power factor of 0.8. The load voltage is 2.4 kV(rms) and the line has an impedance of ZW = 1 + j8 Ω/wire. Find the apparent power supplied by the source and magnitude of the source voltage. ...

Verified Answer:

Use MATLAB to perform the calculations.

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