In a d’Arsonval galvanometer an iron core is usually used between th – McqOptions

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1.	In a d’Arsonval galvanometer an iron core is usually used between the permanent magnet pole faces. This is used so that:
A.	The effect of stray magnetic field is reduced
B.	Moment of inertia of moving parts become smaller
C.	Cost of production is reduced
D.	Flux density in the air gap becomes high thereby a large deflecting torque is produced
Answer» E.

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