conducting rod in magnetic field

JEE Mains 2015 Answers › Electricity and magnetism questions › conducting rod in magnetic field

A conducting rod of length l is hinged at a point.It is free to rotate in a vertical plane.There exists a uniform mag. field B perpendicular to the plane.The rod is released from horizontal position.What is the potential difference between the ends of the rod as a function of angle Î¸ the rod makes with the starting posn?

#Physics #Electricity and magnetism

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4 Answers

33

Abhishek Priyam ·2009-02-17 21:48:29

By energy conservation...
Ï‰=√3gsinÎ¸/l

dÎµ=Ï‰xBdx
Îµ=Ï‰Bâˆ«xdx

=Ï‰Bl²/2

Put value of Ï‰
Îµ= B√3gsinÎ¸
2

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Vivek ·2009-02-18 07:19:59

i understood the second part but can u explain how u got the value of Ï‰ or the exact expression you used

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33

Abhishek Priyam ·2009-02-18 07:40:15

mg(l/2)sinÎ¸=(1/2)m(l²/3)Ï‰²

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33

Abhishek Priyam ·2009-02-18 07:48:40

opsie.. edited that

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Your Answer

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