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Essentials of Electrical and Computer Engineering

David V. Kerns, Jr., J. David Irwin

Chapter 6

Magnetically Coupled Circuits and Transformers - all with Video Answers

Educators


Chapter Questions

Problem 1

Write the circuit equations necessary to find $\mathbf{I}_2$ in the network shown in Figure P6.1.
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Problem 2

Write the circuit equations necessary to find $\mathbf{I}_1$ and $\mathbf{I}_2$ in the circuit in Figure P6.2.
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Problem 3

Write the circuit equations necessary to determine the loop currents $\mathbf{I}_1$ and $\mathbf{I}_2$ in the network in Figure P6.3.
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Problem 4

Find the current $\mathbf{I}_1$ in the circuit in Figure P6.4.
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Problem 5

Find the current $\mathbf{I}_2$ in the network shown in Figure P6.5.
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Problem 6

Determine the two loop currents shown in the network in Figure P6.6.
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Problem 7

Find $\mathbf{I}_2$ in the circuit shown in Figure P6.7.
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Problem 8

Find $\mathbf{I}_1$ in the network shown in Figure P6.8.
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Problem 9

Find $\mathbf{V}_0$ in the circuit shown in Figure P6.9.
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01:31

Problem 10

Find $\mathbf{V}_X$ in the circuit shown in Figure P6.10.
Figure P6.10 can't copy

Khoobchandra Agrawal
Khoobchandra Agrawal
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Problem 11

Find $\mathbf{V}_X$ in the network shown in Figure P6.11.
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Problem 12

Find $\mathbf{I}_A$ in the network in Figure P6.12.
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02:58

Problem 13

Find $\mathbf{V}_A$ in the network shown in Figure P6.13.
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Robert Gannon
Robert Gannon
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Problem 14

Find $\mathbf{V}_0$ in the circuit shown in Figure P6.14.
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Problem 15

Find $\mathbf{I}_2$ in the network shown in Figure P6.15.
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Problem 16

Find the voltage gain $\mathbf{V}_0 / \mathbf{v}_S$ of the network shown in Figure P6.16.
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Problem 17

Find the voltage gain $\mathbf{V}_0 / \mathbf{V}_S$ for the network shown in Figure P6.17.
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Problem 18

Determine the voltage gain $\mathbf{V}_0 / \mathbf{V}_1$ of the network shown in Figure P6.18.
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Problem 19

Determine the impedance seen by the source $\mathbf{V}_1$ in the circuit shown in Figure P6.19.
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Problem 20

Determine the impedance seen by the source $\mathbf{V}_1$ in the network shown in Figure P6.20.
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01:29

Problem 21

Given the network shown in Figure P6.21, determine the value of the capacitor $\mathrm{C}$ that will cause the reflected impedance to the primary to be purely resistive.
Figure P6.21 can't copy

Khoobchandra Agrawal
Khoobchandra Agrawal
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Problem 22

Analyze the network in Figure P6.22 and determine if a value of $X_C$ can be found such that the output voltage is equal to twice the input voltage.
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Problem 23

Find $\mathbf{I}_1$ and $\mathbf{I}_2$ in the circuit shown in Figure P6.23.
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Problem 24

Find all voltages and currents in the circuit shown in Figure P6.24
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Problem 25

Find $\mathbf{V}_0$ in the network in Figure P6.25.
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Problem 26

Find $\mathbf{V}_0$ in the circuit shown in Figure P6.26.
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Problem 27

In the network in Figure P6.27 the voltage $\mathbf{V}_0=10 / 0^{\circ} \mathrm{V}$. Find the input voltage $\mathbf{V}_S$.
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Problem 28

In the network in Figure P6.28 $\mathbf{I}_2=4 / 0^{\circ} \mathrm{A}$. Find $\mathbf{V}_S$.
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05:26

Problem 29

In the circuit in Figure P6.29 $\mathbf{V}_0$ is known to be $12 \angle 0^{\circ} \mathrm{V}$. Find $\mathbf{I}_S$.
Figure P6.29 can't copy

Thomas Thompson
Thomas Thompson
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Problem 30

In the network in Figure P6.30 it is known that $\mathbf{V}_0=4 \angle 30^{\circ} \mathrm{V}$. Find $\mathbf{I}_5$.
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03:02

Problem 31

The output stage of an amplifier is to be matched to the impedance of a speaker as shown Figure P6.31. If the impedance of the speaker is $8 \Omega$ and the amplifier requires a load impedance of $3.2 \mathrm{k} \Omega$, determine the turns ratio of the ideal transformer.
Figure P6.31 can't copy

Kajal Gautam
Kajal Gautam
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Problem 32

If the load voltage in the network shown in Figure P6.32 is $100 \angle 0^{\circ} \mathrm{V}$ rms, determine the input voltage $\mathbf{V}_S$.
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01:39

Problem 33

In the network shown in Figure P6.33, if $\mathbf{V}_L=120 \angle 0^{\circ} \mathrm{V}$ rms and the load $Z_L$ absorbs $500 \mathrm{~W}$ at $0.85 \mathrm{PF}$ lagging, compute the voltage $\mathbf{V}_S$.
Figure P6.32 can't copy

Kajal Gautam
Kajal Gautam
Numerade Educator