Question

5?j20? 45? 100?0°V j5?j125 Vab Figure 4: For Question 17 For the linear transformer circuit shown in figure 4, the open circuit voltage at terminal a,b is $V_{ab,open} = 282.8?45.0°$ V. The short circuit current when terminals a, b are shorted is $I_{ab,sc} = 2.353?0.00°$ A. A variable resistor R is attached to terminals a,b and tuned until the most real power possible is transferred to the resistor. 17. What is the resistance R? (a) 8.3 m? (b) 314 ? (c) 120 ? (d) 10 ? (e) None of the above 18. What is the real power absorbed by R? (a) 56.3 W (b) 143 W (c) 35.7 W (d) 97.5 W (e) None of the above

          5?j20?
45?
100?0°V
j5?j125
Vab
Figure 4: For Question 17
For the linear transformer circuit shown in figure 4, the open circuit voltage at terminal a,b is
$V_{ab,open} = 282.8?45.0°$ V. The short circuit current when terminals a, b are shorted is $I_{ab,sc} = 2.353?0.00°$
A. A variable resistor R is attached to terminals a,b and tuned until the most real power possible is
transferred to the resistor.
17. What is the resistance R?
(a) 8.3 m?
(b) 314 ?
(c) 120 ?
(d) 10 ?
(e) None of the above
18. What is the real power absorbed by R?
(a) 56.3 W
(b) 143 W
(c) 35.7 W
(d) 97.5 W
(e) None of the above

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5?j20?
45?
100?0°V
j5?j125
Vab
Figure 4: For Question 17
For the linear transformer circuit shown in figure 4, the open circuit voltage at terminal a,b is
Vab,open = 282.8?45.0° V. The short circuit current when terminals a, b are shorted is Iab,sc = 2.353?0.00°
A. A variable resistor R is attached to terminals a,b and tuned until the most real power possible is
transferred to the resistor.
17. What is the resistance R?
(a) 8.3 m?
(b) 314 ?
(c) 120 ?
(d) 10 ?
(e) None of the above
18. What is the real power absorbed by R?
(a) 56.3 W
(b) 143 W
(c) 35.7 W
(d) 97.5 W
(e) None of the above

Added by Sergio G.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Narayan Hari

Step 1

The open circuit voltage at terminals a,b is given as Van.open = 282.8450 V. The short circuit current when terminals a,b are shorted is given as Iat,x = 2.3530 A. Impedance (Z) can be calculated using the formula Z = Van.open / Iat,x. Z = 282.8450 V / 2.3530 A Z Show more…

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Text: 20n 45 WW 10001 50 j125 Figure 4: For Question 17 For the linear transformer circuit shown in Figure 4, the open circuit voltage at terminals a,b is Van.open = 282.8450 V. The short circuit current when terminals a,b are shorted is Iat,x = 2.3530 A. A variable resistor R is attached to terminals ab and tuned until the most real power possible is transferred to the resistor. 17. What is the resistance R? (a) 314 Î© (b) 120 Î© (c) 10 Î© (d) None of the above 18. What is the real power absorbed by R? (a) 56.3 W (b) 143 W (c) 35.7 W (d) 97.5 W (e) None of the above

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