Question

What is Torque Experienced by a Current Carrying Loop in a Uniform Magnetic Field?

Answer

Torque Experienced by a Current Carrying Loop in a Uniform Magnetic Field - In the given figure alongside, when a current carrying coil (loop) having N turns and area A, is placed in a uniform field B, in such a way that the normal (n^) to the coil makes an angle θ with the direction of B, then the coil experiences a torque given by, τ = NBIA sinθ PQ = RS = a ⇒ QR = SP = b or [τ = M × B]