alleryStart learning →Sensitive instruments are protected from stray fields by enclosing them in a case of
Asoft iron alloy
Bthin copper foil
Cdry wood block
Dhard plastic
Answer & Solution
Correct answer: A. soft iron alloy
A soft ferromagnetic shell has high permeability and diverts field lines around the enclosed region.
Keep practising Magnetic Materials
Browse all Magnetic Materials questions for MHT-CET, or explore more Physics topics.
Related questions
Electromagnet cores are made of soft iron because it hasMaterials used for permanent magnets should haveThe reverse field H needed to bring B to zero in a hysteresis cycle is calledThe value of B left in a ferromagnet when H is reduced to zero is calledOn heating a ferromagnet, its domain structure distorts because exchange couplingThe temperature above which a ferromagnet behaves as a paramagnet is itsA region of a ferromagnet with all atomic moments aligned the same way is aThe strong interaction between neighbouring atomic moments in a ferromagnet is called