Answer to Question #214449 in Electricity and Magnetism for Muthiah Afifah

Question #214449

A multilayer coil of 2000 turns of fine wire is 20 mm long and has a thickness 5 mm of winding. If the coil carries a current of 5 mA, the mmf generated is (a) 10 A . t (c) 2000 A .t (b) 500 A . t (d) None of the above Answers


1
Expert's answer
2021-07-12T16:22:56-0400

Gives

n=2000 turn

"i=5mA"

Magnetomotive force "(F)=ni(A.t)"

Magnetomotive force=turn"\\times" area

"F=2000\\times5\\times10^{-3}A .t"

"F=10A.t"

Option (a) is correct


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