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Tangent Law And Galvanometer - Questions and Answers

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16. The circular compass box of a tangent galvanometer has graduations
A. from 0 to 360°
B. from 0° to 180°
C. from 0° to 90°
D. from 0° to 45°
Explanation:
17. In tangent galvanometer experiment, the plane of the coil should be adjusted to be along the
A. magnetic axis
B. equator
C. magnetic meridian
D. East-West direction
Explanation:
18. The magnetic needle of a tangent galvanometer is kept small because the magnetic field is
A. very small
B. very large
C. considered to be uniform over a small area
D. such that it is convenient to handle small needle
Explanation:
19. Tangent law is used
A. when two uniform and mutually perpendicular magnetic fields are present
B. when two uniform and parallel magnetic fields are present
C. when two magnetic fields are present
D. when horizontal component of the earth’s magnetic field is present
Explanation:
20. The tangent galvanometer is more sensitive when the deflection is around
A.
B. 30°
C. 90°
D. 45°
Explanation: