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Which part of the PMMC instrument produce eddy current damping?

AMoving coil

BAluminium former

CPermanent magnet

DSoft iron cylindrical core

Answer:

D. Soft iron cylindrical core


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ആറ്റോമിക നമ്പർ 31 ഉള്ള മൂലകം ആവർത്തന പട്ടികയിൽ ഏതു പിരിയഡിലും ഗ്രൂപ്പിലുമാണ് ഉൾപ്പെടുന്നത് ?