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The strength of the earth's magnetic fie...

The strength of the earth's magnetic field is

A

`10^(-4)Wb`

B

`10^(-4)` tesla

C

`10^(-4)` A m

D

`10^(2)"gauss"`

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The correct Answer is:
B
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A magnetic needle free to rotate in a vertical plane parallel to the magnetic meridian has its north tip pointing down at 22^@ with the horizontal. The horizontal component of the earths magnetic field at the place is known to be 0*35G . Determine the strength of the earths magnetic field at the place.

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

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 vertical component of earth's magnetic field is zero at a place where angle of dip is

What is the strength of earth's magnetic field at the surface of earth?

Which of the following quantities: (I) magnetic declination (II) dip is used to determine the strength of earths magnetic field at a point on the earths surface

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

TARGET PUBLICATION-MAGNETISM-MCQs
  1. The earth's magnetic field

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  2. A vertical plane passing through the magnetic north and south pole of ...

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  3. The strength of the earth's magnetic field is

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  4. Which of the following statements is true?

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  5. The direction of earth's magnetic field is horizontal and vertical res...

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  6. Soft iron is used for making electromagnet because it

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  7. Which of the following are uses of electromagnets?

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  8. Strength of electromagnet can be increased by

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  9. The magnetic induction due to a bar magnet at a point on its axis is d...

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  10. The magnetic field at a distance d from a short bar magnet in longitud...

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  11. Two points A and B are situated perpendicular to the axis of 4 cm long...

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  12. The magnetic induction due to short magnetic dipole of moment 0.1" A m...

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  13. The magnetic induction due to a bar magnet of length 6 xx 10^(-2)m and...

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  14. Using mass (M), length (L), time (T) and current (A) as fundamental q...

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  15. The magnetic induction at a point on axis or equator is proportional t...

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  16. When a bar magnet is placed in a non-uniform magnetic field, it perfor...

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  17. In order to have a strong electromagnet it must have

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  18. Earth's magnetic field always has a horizontal component except at

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  19. Each pole of magnet of length 20 cm in a magnetic field of induction 0...

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  20. If the moment of a magnet is 0.4 A m^(-1) and force seting on esch pot...

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