The elements of earth's magnetic field at a place are declination, dip and horizontal intensity. The vertical component of earth's magnetic field at a given place is 3 times its horizontal component. If total intensity of earth's magnetic field at the place is 0 . 4 G , find the value of horizontal component of earth's magnetic field.

Total intensity of earth's magnetic field = 0 . 4 G tan θ = B V B H = 3 ∴ θ = 60 ° B H = B cosθ , B = 0 . 4 G B H = 0 . 4 × cos 60 = 0 . 2 G = 0 . 2 × 10 - 4 T The horizontal component of earth's magnetic field is 0 . 2 × 10 - 4 T . Hence, it is the required answer.

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The angle between magnetic meridian and geographical meridian is called angle of .

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Important Questions on Magnetism and Matter

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Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism

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Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism

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Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism

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Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism

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Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism

At a certain place, the horizontal component of earth's magnetic field is

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Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism

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Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism

The horizontal component of the earth's magnetic field is

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Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism

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Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism

A jet plane with a wing-span of

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Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism

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Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism

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Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism

At a point

A

on the earth’s surface the angle of dip,

δ = + 25 °

. At a point

B

on the earth’s surface, the angle of dip,

δ = - 25 °

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Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism

Define the elements of the earth's magnetic field.

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Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism

What is meant by angle of dip ?

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Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism

Define magnetic declination. How does it depend on latitudes?

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Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism

The elements of earth's magnetic field at a place are declination, dip and horizontal intensity.

A magnetic needle free to move in horizontal plane is shown below:

Question Image

Which elements of earth's magnetic field is represented by $θ$ in the figure?

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Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism

The elements of earth's magnetic field at a place are declination, dip and horizontal intensity.

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MEDIUM

Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism

At certain place, horizontal component is

\frac{1}{\sqrt{3}}

times the vertical component. The angle of dip is

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Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism

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MEDIUM

Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism

θ_{1}

and

θ_{2}

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θ

is given by

The angle between magnetic meridian and geographical meridian is called angle of .

Important Questions on Magnetism and Matter

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