1.

The magnetomotive force experienced by a unit N-pole at any point in a circle of 'r' meters away from the center of a bunch of ‘N’ conductors carrying a current of I amperes each is:

A. \(\frac{{NI}}{{2\pi r}}oersted\)
B. \(\frac{{NI}}{{3\pi r}}oersted\)
C. \(\frac{{NI}}{{4\pi r}}oersted\)
D. \(\frac{{NI}}{{1\pi r}}oersted\)
Answer» B. \(\frac{{NI}}{{3\pi r}}oersted\)


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