A straight wire of length L and mass M carries a current I

Last updated: 6/10/2023

A straight wire of length L and mass M carries a current I It is placed on a horizontal rough surface and a vertical magnetic field B is switched on The coefficient of friction between the wire and the surface is u Find the least value of B which can make the wire translate Give your answer for L 1 0m M 50 g I 5A and 0 5 How will your answer change if direction of B is reversed