To protect an instrument from an external mag | vedclass

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(A) To protect an instrument from an external magnetic field,the phenomenon of magnetic shielding is used.Magnetic shielding is achieved by surroundin

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soft ferromagnetic substance.

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(A) To protect an instrument from an external magnetic field,the phenomenon of magnetic shielding is used.Magnetic shielding is achieved by surrounding the instrument with a material of high magnetic permeability,such as soft iron (a soft ferromagnetic substance).When placed in an external magnetic field,the magnetic field lines prefer to pass through the high-permeability material rather than the air or the space inside the enclosure.As a result,the interior region remains free from the external magnetic field,effectively shielding the instrument.

To protect an instrument from an external magnetic field,it is completely surrounded by:

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