Question

The current generator I_g, shown in figure (38-E20), sends a constant current i through the circuit. The wire ab has a length I and mass m and can slide on the smooth, horizontal rails connected to I_g. The enitre system lies in a vertical magnetic field B. Find the velocity of the wire as a function of time.

Answer 1

Force on the wire = iℓB

Acceleration = iℓB/m

Velocity = iℓBt/m

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