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SOmeOne with a gOod heaRt..heLp me!!!!?

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sOmeone helP Me soLve these physics probLem...:(

iM really not good in physics...in return, you can ask me whatever uR problems about algebra, calculus, or chemistry...

http://i346.photobucket.com/albums/p414/rJay_e1/Picture249.jpg

1. what is the direction of F3?

a. toward the top of the core and then to the left

b. toward the bottom of the core and then to the left

2. what is the reluctance R234 presented to flux F3?

a. 1.75 X 10^3 1/H...............c. 5.73 X 10^3 1/H

b. 5.10 X 10^3 1/H...............d. 8.08 X 10^3 1/H

3. what is the reluctance R24 presented to flux F2?

a. 0.743 X 10^3 1/H

b. 2.93 X 10^3 1/H

c. 5.10 X 10^3 1/H

d. 8.12 X 10^3 1/H

4.what is the direction of flux F1?

a. toward the top of the core and then to the right

b. toward the bottom of the core and then to the right

5. what is the equivalent reluctance of the core as seen by the applied mmf?

a. 5.75 X 10^3 1/H

b. 9.83 X 10^3 1/H

c. 11.4 x 10^3 1/H

d. 17.3 X 10^3 1/H

*F3 means flux sub 3

*R24=reluctance sub24

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1 ANSWERS


  1. Sorry - I have no idea.  I've never seen what looks like a shell-core transformer driven by a side winding and with no loads - maybe engineering can help?

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