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The intensity of earth's magnetic field ...

The intensity of earth's magnetic field is of the order of

A

`10^(-5) T`

B

`10^(-10)` T

C

`10^(5)` T

D

`10^(10) T`

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The correct Answer is:
A
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The earth's magnetic field is approximately like that of a giant magnetic dipole, whose axis is inclined roughly 20^@ west of the axis of rotation of earth which is the geographic N-S direction. The strength of earth's magnetic field is of the order of 10^-4 tesla . Three magnetic elements of earth are: Magnetic declination (theta) , magnetic inclination or magnetic dip (delta) and horizontal component (H) of earth's magnetic field. Magnetic declination is the small angle between magnetic axis and geographic axis at a place. Magnetic dip at a place is the angle, which the direction of total strength of earth's magnetic field (R) makes with a horizontal line in magnetic meridian. If H is horizontal component and V is vertical component of earth's magnetic field, then H=Rcos delta , V=Rsin delta and R=sqrt(H^2+V^2) . At a place on the surface of earth. H is of the order of 3*3xx10^-5tesla . Magnetic declination is

The earth's magnetic field is approximately like that of a giant magnetic dipole, whose axis is inclined roughly 20^@ west of the axis of rotation of earth which is the geographic N-S direction. The strength of earth's magnetic field is of the order of 10^-4 tesla . Three magnetic elements of earth are: Magnetic declination (theta) , magnetic inclination or magnetic dip (delta) and horizontal component (H) of earth's magnetic field. Magnetic declination is the small angle between magnetic axis and geographic axis at a place. Magnetic dip at a place is the angle, which the direction of total strength of earth's magnetic field (R) makes with a horizontal line in magnetic meridian. If H is horizontal component and V is vertical component of earth's magnetic field, then H=Rcos delta , V=Rsin delta and R=sqrt(H^2+V^2) . At a place on the surface of earth. H is of the order of 3*3xx10^-5tesla . At magnetic poles, a compass needle points out

The earth's magnetic field is approximately like that of a giant magnetic dipole, whose axis is inclined roughly 20^@ west of the axis of rotation of earth which is the geographic N-S direction. The strength of earth's magnetic field is of the order of 10^-4 tesla . Three magnetic elements of earth are: Magnetic declination (theta) , magnetic inclination or magnetic dip (delta) and horizontal component (H) of earth's magnetic field. Magnetic declination is the small angle between magnetic axis and geographic axis at a place. Magnetic dip at a place is the angle, which the direction of total strength of earth's magnetic field (R) makes with a horizontal line in magnetic meridian. If H is horizontal component and V is vertical component of earth's magnetic field, then H=Rcos delta , V=Rsin delta and R=sqrt(H^2+V^2) . At a place on the surface of earth. H is of the order of 3*3xx10^-5tesla . The intensity of earth's magnetic field at the surface of earth is of the order of

The earth's magnetic field

The earth's magnetic field

The strength of the earth's magnetic field is

If I is the intensity of earth's magnetic field, H its horizontal component and V the vertical component, then these are related as

The study of earth's magnetic field is called as

AAKASH INSTITUTE-MAGNETISM AND MATTER -Assignment Section - A Objective Type Questions (One option is correct)
  1. The location of the north magnetic pole is a latitude of

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  2. Two magnets of equal magnetic moments M each are placed as shown in fi...

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  3. The intensity of earth's magnetic field is of the order of

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  4. A line joining places of zero declination is called

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  5. Domains for motion is not necessary feature of

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  6. A superconductor exhibits perfect

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  7. Maxwell's equation oint vecB * d vecs = 0 says

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  8. A permanent magnet attracts

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  9. A toroid has/have

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  10. In the figure here a paramagnetic sphere is located near south pole of...

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  11. In the figure here a diamagnetic sphere is kept near the bar magnet . ...

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  12. Area under this given curve gives

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  13. The materials for the construction of electromagnet should have

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  14. Magnetic dip was measured at various places on earth in one of the fol...

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  15. Two identical short bar magnets at a distance d(1) = 2 m apart are pl...

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  16. In tangent galvanometer generally for more accuracy deflection of galv...

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  17. In tan A position two short bar magnets of magnetic moments in ratio o...

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  18. Two similar magnets of magnetic moments M(1) and M(2) are taken and vi...

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  19. The arms of a deflection magnetometer in tangent B position are placed...

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  20. A deflection magnetometer is adjusted in the usual way . When a magnet...

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