Can the integral of the magnetic field B along a closed line L be zero if there is a current I linked with L?
Can the integral of the magnetic field B along a closed line L be zero if there is a current I linked with L?
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Transcribed Image Text:Can the integral of the magnetic field B along a closed line L be zero if there is a current I linked with L?
(a) Yes it is always zero
(b)
Yes if current I is connected to L twice in the same direction
Yes if the current I is connected to L twice in the opposite direction
(d) It is impossible
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