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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 [Wrong Answer] |
B. | a soft iron shielding is used [Correct Answer] |
C. | a plastic shielding is provided [Wrong Answer] |
D. | a shielding of a non-magnetic material is used [Wrong Answer] |