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1. A current-carrying conductor placed at right angles to a uniform magnetic field, experiences a force of 4.7 x 10^-3 N. Determine the force on the wire when the current in the wire is increased by a factor of 3.0

I HAVE NO IDEA!

I think if I were to just times by 3 it would be wrong as it's not taking into account B and L, therefore I am not sure how to work this out. Please help.
2. B is magnetic field strength, which i think is constant here, as is L

F = BIL

I = F/BL

if I is multiplied by 3 so if (F/BL)
B and L are constant, so F is multiplied by 3

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