A conducting rod of length L rotates in its own plane about one end with constant angular speed ω. A magnetic field perpendicular to the plane of rotation varies with radial distance r as B(r) = B₀ exp(-λr), where λ is a positive constant. Neglect the centripetal force on electrons in the rod. Which expression gives the motional emf between the ends of the rod?
Physics · Electromagnetic Induction · motional emf and induced emf in rotating rod
A conducting rod of length L rotates in its own plane about one end with constant angular speed ω. A magnetic field perpendicular to the plane of rotation varies with radial distance r as B(r) = B₀ exp(-λr), where λ is a positive constant. Neglect the centripetal force on electrons in the rod. Which expression gives the motional emf between the ends of the rod?
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