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प्रश्न
What is the function of uniform radial field and how is it produced?
उत्तर
In uniform radial field sinα = 1, so the torque acting on the coil will always be τ = nIBA (maximum).
To produce radial magnetic field pole pieces of permanent magnets are made cylindrical and a soft iron core is placed between them. The soft iron core helps in making the field radial.
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