Q.

The value of angle of dip is zero at the magnetic equator because on it (Where BH= Horizontal component of earth's magnetic field; Bv= Vertical component of earth's magnetic field) 

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a

The value of Bv and BH is zero 

b

The value of BH is zero

c

Bv and BH are equal

d

The value of Bv is zero

answer is C.

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Detailed Solution

Since the value of vertical component is zero

 BV=Bsinφ=0;  sinφ=0;  φ=0

so angle of dip is zero. 

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