A) While taking reading of tangent galvanometer, the plane of the coil must be set at right angles to the earth?s magnetic meridian
B) A short magnet is used in a tangent galvanometer since a long magnet would be heavy and may not easily move
C) Measurements with the tangent galvanometer will be more accurate when the deflection is around 45o
D) A tangent galvanometer cannot be used in the polar region
Correct Answer: A
Solution :
In tangent galvanometer experiment. The plane of the coil firstly set in the magnetic meridian.
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