A conducting rod oriented horizontally along an east-west axis has a length 2.4

Question

A conducting rod oriented horizontally along an east-west axis has a length 2.4 meters and is dropped from some height. As it falls, it reaches a downward velocity of 35 m/s at a given instant. The rod falls through a uniform magnetic field generated by the Earth of 57 mu T directed 38 degree vertically downward from true horizontal North. Determine the magnitude of the EMF induced between your answer, which end of the rod is positive, east or west? Draw a diagram to help justify your answer. If a current were to flow through this rod in response to the voltage difference, in what direction would the magnetic force on the rod point.

Explanation / Answer

Bu Using Lenz's law we can ssay the direction of current and By Flemings left hand rule,stretch the Fore finger,middle finger and thumb of the left hand such that these three fingers are mutually pependicular to each other

middle finger is in the direction of current ,Fore Finger is in the direction of magnetic Field and Thmb gives the direction of force

then accordingly,The direction of force is along the North

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