The effect of stray magnetic fields on the actuating torque of a portable instrument is maximum when the

The effect of stray magnetic fields on the actuating torque of a portable instrument is maximum when the operating field of the instrument and the stray fields are 

A) Perpendicular B) Parallel C) Inclined at 60" D) Inclined at 30°
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1 Answer

Answer :

The effect of stray magnetic fields on the actuating torque of a portable instrument is maximum when the operating field of the instrument and the stray fields are Parallel 

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