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Tangent Law And Galvanometer - Questions and Answers

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6. The plane of the compass box of a tangent galvanometer is
A. along the magnetic meridian
B. parallel to the turn table
C. parallel to the plane of the coil
D. vertical
Explanation:
7. The magnetic field along the axis of a bar magnet is
A. B = µ0/4π . 2Md/(d2-l2)3/2
B. B = µ0/4π . M/(d2+l2)3/2
C. B = µ0/4π . 2Md/(d2-l2)2
D. B = µ0/4π . M/(d2+l2)2
Explanation:
8. By tangent law, the field due to the magnet is
A. B
B. tan θ
C. B tan θ
D. B/tan θ
Explanation:
9. The reduction factor k of a tangent galvanometer is
A. 2nHh
B. 2Hh/r
C. 2rHh/n
D. 2nrHh
Explanation:
10. During the initial adjustment, the magnetic needle of the deflection magnetometer in Tan B position
A. position East – West direction
B. is perpendicular to magnetic meridian
C. points North – South direction
D. shows 0-0 on the graduated scale
Explanation:
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