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A conducting rod of mass 200 gm and leng...

A conducting rod of mass 200 gm and length 10 cm can slide without friction on two long, horizontal rails. A uniform magnetic field of magnitude 5 m T exists in the region as shown. A source S is used to maintain a constant current 2 A through the rod. If motion of the rod starts from the rest, find its speed (in cm/s) after 10 s from the start of the motion

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The correct Answer is:
5
`a=(ilb)/(m) and v=((ilB)/(m))t = 5 cm//s` .
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