conducting rod PQ of length 20 …
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conducting rod PQ of length 20 cm and resistance 0.1 ohm rests on two smooth parallel rails of negligible resistance AA' and CC'. It can slide on the rails and the arrangement is positioned between the poles of a permanent magnet producing uniform magnetic field B = 2.4 T. The rails, the road and the magnetic field are in three mutually perpendicular directions as shown in the figure. If the ends A and C of the rails are short circuited, find the
(I) external force required to move the rod with uniform velocity v = 10 cm/s,
Posted by Vijaya Prajapati 5 years ago
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