Q.

The angle of the dip at a place is 40.60 and the vertical component of the earth’s magnetic field BV = 6 ×10-5T. The total intensity of the earth’s magnetic field at this place is (sin 40.6°= 0.650)

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a

7 × 10-5T

b

9.2 × 10–5T.

c

5 × 10–5T

d

6 × 10–5T

answer is D.

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Detailed Solution

BV=BsinθB=BVsinθ=6×10-50.65=9.2×10-5

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