Physics - Current Loop
A current loop in a motor has an area of 0.85 cm^2. It carries a 240 mA current in a uniform field of 0.62 T. What is the magnitude of the maximum torque on the current loop?
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The maximum torque on the current loop is equal to the product of the magnetic field, the current and the area: τ = 0.62 T * 0.24 A * 0.85 cm^2 = 0.123 Nm. This is because the torque produced by a current loop can be expressed as the cross product of the magnetic field and the current vector, which then is multiplied by the area of the loop.
