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Earth's magnetic field has a horizontal component except at

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Important Questions on Matter and Magnetism

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Physics>Electricity and Magnetism>Matter and Magnetism>Terrestrial Magnetism

The strength of earth's magnetic field on the earth's surface is of the order: of

EASY

Physics>Electricity and Magnetism>Matter and Magnetism>Terrestrial Magnetism

Select the correct statement from the following:

EASY

Physics>Electricity and Magnetism>Matter and Magnetism>Terrestrial Magnetism

The earth's magnetic field at a certain place has a horizontal component

0.3 G

and the total strength

0.5 G .

The angle of dip is

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Physics>Electricity and Magnetism>Matter and Magnetism>Terrestrial Magnetism

The North pole of Earth's magnet is near the geographical

EASY

Physics>Electricity and Magnetism>Matter and Magnetism>Terrestrial Magnetism

The strength of the Earth’s magnetic field is

EASY

Physics>Electricity and Magnetism>Matter and Magnetism>Terrestrial Magnetism

The total intensity of the earth's magnetic field at equator is

5

units. What will be its value at the poles?

EASY

Physics>Electricity and Magnetism>Matter and Magnetism>Terrestrial Magnetism

In the magnetic meridian of a certain place, the horizontal component of the dip angle is

45 ° .

What is the magnetic field of the earth at this location?
(Use Horizontal component of the magnetic field to be

0.26 G

)

EASY

Physics>Electricity and Magnetism>Matter and Magnetism>Terrestrial Magnetism

Magnetic meridian is a plane___.

EASY

Physics>Electricity and Magnetism>Matter and Magnetism>Terrestrial Magnetism

A Jet plane is travelling west at

450

metres per second. If the horizontal component of Earth's magnetic field is

4 \times 10^{- 4}

Tesla and angle of dip is

30 °,

Then the vertical component is

EASY

Physics>Electricity and Magnetism>Matter and Magnetism>Terrestrial Magnetism

The relation between

B_{v,} B_{h}

and

B

is _____

EASY

Physics>Electricity and Magnetism>Matter and Magnetism>Terrestrial Magnetism

The horizontal component of the earth's magnetic field at a place is

0.25 \times 10^{- 4} Wb / m^{2}

and its vertical component is

0.35 \times 10^{- 4} Wb / m^{- 4}

. Then the earth's total magnetic field at that place is

EASY

Physics>Electricity and Magnetism>Matter and Magnetism>Terrestrial Magnetism

The vertical component of earth's magnetic field at a place is

\sqrt{3}

times the horizontal component the value of angle of dip at this place is

EASY

Physics>Electricity and Magnetism>Matter and Magnetism>Terrestrial Magnetism

Which of the following demonstrated that earth has a magnetic fied:

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Physics>Electricity and Magnetism>Matter and Magnetism>Terrestrial Magnetism

The dip angle at point, $P$ on earth's surface, is $45 °$ . If the dip angle is changed by $1 %$ then the change in the horizontal component of earth's magnetic field is:

EASY

Physics>Electricity and Magnetism>Matter and Magnetism>Terrestrial Magnetism

What is the angle of dip at a place where the horizontal component

(B_{H})

and vertical component

(B_{V})

of earth

'

s magnetic field are equal

:

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Physics>Electricity and Magnetism>Matter and Magnetism>Terrestrial Magnetism

θ_{1}

and

θ_{2}

be the apparent angles of dip observed in two vertical planes at right angles to each other, then the true angle of dip

θ

is given by

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Physics>Electricity and Magnetism>Matter and Magnetism>Terrestrial Magnetism

Magnetic meridian is

EASY

Physics>Electricity and Magnetism>Matter and Magnetism>Terrestrial Magnetism

B_{H} = 4 \times 10^{- 5} T

and

B_{v} = 2 \times 10^{- 5} T

, then the Earth's total field at the place is (in

T

EASY

Physics>Electricity and Magnetism>Matter and Magnetism>Terrestrial Magnetism

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

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

times the vertical component. The angle of dip at that place is

EASY

Physics>Electricity and Magnetism>Matter and Magnetism>Terrestrial 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 °

. We can interpret that:

Earth's magnetic field has a horizontal component except at

Important Questions on Matter and Magnetism

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