in this figure , a straight wire carries a steady current I. A bar is in contact with a pair of rails and is in motion with velocity v. the polarity of the induced emf terminals X and Y is i) both same potential ii) x positive, y negative iii) y positive, x negative
in this figure , a straight wire carries a steady current I. A bar is in contact with a pair of rails and is in motion with velocity v. the polarity of the induced emf terminals X and Y is i) both same potential ii) x positive, y negative iii) y positive, x negative
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in this figure , a straight wire carries a steady current I. A bar is in contact with a pair of rails and is in motion with velocity v. the polarity of the induced emf terminals X and Y is
i) both same potential
ii) x positive, y negative
iii) y positive, x negative
Transcribed Image Text:Figure 21.21
1+² L^J
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