Magnetics 3 Question 8

8. A wire ABCDEF (with each side of length L ) bent as shown in figure and carrying a current I is placed in a uniform magnetic induction B parallel to the positive y-direction. The force experienced by the wire is …… in the direction.

(1990, 2M)

True/False

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Answer:

Correct Answer: 8. ILB, positive-z

Solution:

  1. Net force is on an imaginary wire FA having current I from F to A.

F=I[(Li^)×(Bj^)]=ILBk^

Magnitude of force is ILB and direction of force is positive z.



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