Relevant Competitive Tests:
The working of a meter is based on the use of a permanent magnet. In order to protect the meter functioning from stray magnetic fields______________?
A. meter is surrounded by strong magnetic fields
B. a soft iron shielding is usedCorrect Answer
C. a plastic shielding is provided
D. a shielding of anon-magnetic material is used
Correct Option: B. a soft iron shielding is used
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