The commonly used material for shielding or screening magnetism is____________?
Correct answer: C. soft iron
- A. copper
- B. aluminium
- C. soft iron
- D. brass
Explanation
Soft iron has high permeability, so it provides an easy path for magnetic flux and diverts the field away from the screened region. Copper, aluminium, and brass are not effective magnetic shields at ordinary low frequencies.
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