Page 516 - Basic Electrical Engineering
P. 516

S  is the reluctance of path BE
                 1





















               AT required for portion BAFE (=26cm) = ϕ × S              3








               AT required for portion BE = ϕ  × S         1
                                                     1









                  In the electric circuit, we see that by applying KCL


                     E − IR − I  R  = 0
                                     1
                                 1
                  or      E = IR + I  R  1
                                      1

               Similarly, for the magnetic circuit



               Total AT = AT required for portion BAFF + AT required for the portion BE


                  = 3105 + 862
                  = 3967.


               The number of turns of the exciting coil is 800.
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