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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 reducedb)Moment of inertia of moving parts become smallerc)Cost of production is reducedd)Flux density in the air gap becomes high thereby a large deflecting torque is producedCorrect answer is option 'D'. Can you explain this answer? for RRB NTPC/ASM/CA/TA 2024 is part of RRB NTPC/ASM/CA/TA preparation. The Question and answers have been prepared according to the RRB NTPC/ASM/CA/TA exam syllabus. Information about 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 reducedb)Moment of inertia of moving parts become smallerc)Cost of production is reducedd)Flux density in the air gap becomes high thereby a large deflecting torque is producedCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for RRB NTPC/ASM/CA/TA 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 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 reducedb)Moment of inertia of moving parts become smallerc)Cost of production is reducedd)Flux density in the air gap becomes high thereby a large deflecting torque is producedCorrect answer is option 'D'. Can you explain this answer?.

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