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The tangent galvanometer is set into mag...

The tangent galvanometer is set into magnetic meridian

A

to minimise error due to parallax.

B

to produce strong magnetic field.

C

to make magnetic field due to current carrying coil , exactly parallel to horizontal component of earth's magnetic field.

D

to make magnetic field due to current carrying coil , exactly perpendicular to horizontal component of earth's magnetic field.

Text Solution

Verified by Experts

The correct Answer is:
D
Tangent galvanometer works on the principle of tangent law . For tangent law , both field should be perpendicular to each other .
Thus, when tangent galvanometer is set in magnetic meridian then field due to current carrying coil is perpendicular to horizontal component of earth's field.
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