# physics

at what velocity must a conductor 75mm long cut a magnetic field of flux density 0.6T if an emf of 9V is to be induced in it? Assuming the conductor, the field and the direction of motion are mutually perpendicular.

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1. Isn't there an equation for this?

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bobpursley
2. E = BLv,
v = E/BL = 9 /0.6•0.075 = 200 m/s

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