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What is the power exchanged by the source

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Reference no: EM131667820

Q1) Using MNA as seen in class, solve the circuit in the figure. All resistances are given in ohms. The value of R= 1 ohms. What is the power exchanged by the 7 A source. If the source is_ absorbing power, report it as positive.

Note: In this problem, you may only submit numerical answers. (i.e. If 4 is the correct answer, 4 will be marked as correct, but 2+2 will be marked as incorrect.)

2422_figure.png

The power exchanged by the 7 A is ..... W.

Q2) In the figure, R10 ohms. Replace the 9 ohm resistor at the bottom by a _wire. Use MNA to determine the current _flowing from right to left through that_ wire, in amps.

Note: In this problem, you may only submit numerical answers. (i.e. If 4 is the correct answer, 4 will be marked as correct, but 2+2 will be marked as incorrect.)

2231_figure1.png

The current_ flowing from right to left through that _wire is ..... A

Q3) What would be the reading, in ohms, of an ohmmeter connected between A and B in the figure (all values are in ohms), when R=13 ohms. Answer too, what would be the reading, if the ohmmeter is connected between C and B instead.

Note: In this problem, you may only submit numerical answers. (i.e. If 4 is the correct answer, 4 will be marked as correct, but 2+2 will be marked as incorrect.)

205_figure2.png

Rab=.... Ohms

Rcb=.... Ohms.

Q4) All resistances are 19 ohms, with the exception of the three resistors in series with the three sources (whose values are also given in ohms, the resistors, not the sources of course!). The current source at the top has a value of 22 amps. (a) How much higher, in volts, is node (3) than node (2). (b) What is the power in the current source, in watts (report this power as positive if the source absorbs power, etc.).

Note: In this problem, you may only submit numerical answers. (i.e., If 4 is the correct answer, 4 will be marked as correct, but 2+2 will be marked as incorrect.)

1938_figure3.png

(a) Drop from (3) to (2)..... V

(b) Power in the current source ... W

Q5) All resistances are 8 ohms, with the exception of the three resistors in series with the three sources (whose values are also given in ohms, the resistors, not the sources of course!). The current source at the top has a value Luis of 17 amps. If you connect nodes (2) and (3) with a wire, a cable, what current flows through that wire from (2) to (3), in amps?

Note: In this problem, you may only submit numerical answers. (i.e. If 4 is the correct answer, 4 will be marked as correct, but 2+2 will be marked as incorrect.)

950_figure4.png

Current from (3) to (2) ...... A.

Reference no: EM131667820

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len1667820

10/3/2017 7:06:46 AM

Note: In problem 1, you may only submit numerical answers. (i.e. If 4 is the correct answer, 4 will be marked as correct, but 2+2 will be marked as incorrect.) In problem 2, you may only submit numerical answers. (i.e. If 4 is the correct answer, 4 will be marked as correct, but 2+2 will be marked as incorrect.) In problem 3, you may only submit numerical answers. (i.e. If 4 is the correct answer, 4 will be marked as correct, but 2+2 will be marked as incorrect.). In problem 4, you may only submit numerical answers. (i.e. If 4 is the correct answer, 4 will be marked as correct, but 2+2 will be marked as incorrect.). In problem 5, you may only submit numerical answers. (i.e. If 4 is the correct answer, 4 will be marked as correct, but 2+2 will be marked as incorrect.)

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