PhysicsMagnetic Effects of Electric Current

Force on a Current-Carrying Wire

F = BIL sinθ — see when force is maximum.

Field B0.5 T

Current3 A

Length0.5 m

Angle with field90 °

Force

0.75N

Force (N)0.75

Magnetic field around the currentForce: 0.75 N

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Force is maximum when the wire is perpendicular to the field and zero when parallel.

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