Physics – 4.5.4 Force on a current-carrying conductor | e-Consult

Formula: The magnitude of the magnetic force (F) on a current-carrying conductor in a magnetic field is given by:

F = I x L x B x sin(θ)

where:

• I = Current (in Amperes)
• L = Length of the conductor in the magnetic field (in meters)
• B = Magnetic field strength (in Teslas)
• θ = Angle between the current and the magnetic field

Calculation:

I = 2 A

L = 0.2 m

B = 0.5 T

θ = 90° (since the wire is perpendicular to the magnetic field), sin(90°) = 1

F = 2 A x 0.2 m x 0.5 T x 1 = 0.2 N

Answer: The magnitude of the magnetic force is 0.2 N.