A frictionless conducting resistance less rod of mass m straddles the two rails of a track as shown in figure. THe rails are also resistanceless. Width of the track is l and it is sufficiently long.
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A frictionless conducting resistance less rod of mass m straddles the two rails of a track as shown in figure. THe rails are also resistanceless. Width of the track is l and it is sufficiently long. A frictionless conducting resistance less rod of mass m straddles the two rails of a track as shown in [...]