The dip is the angle that the total magnetic field of the earth makes with the surface of earth. Hence, if the magnetic needle is balanced about a horizontal axis so that it can swing in a plane of the magnetic meridian, the needle makes an angle with the horizontal. This angle is called angle of dip or angle of inclination.

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Earn 100

Why a magnetic compass needle always points towards magnetic north pole near to geographic north pole?

Important Questions on Matter and Magnetism

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 strength of the Earth’s magnetic field is

MEDIUM

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

At certain place, horizontal component is

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

times the vertical component. The angle of dip is

EASY

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

Define the elements of the earth's magnetic field.

MEDIUM

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

EASY

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

Define magnetic declination and dip at a place.

MEDIUM

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

A jet plane with a wing-span of

25 m

is travelling horizontally towards the east with a speed of

3600 km / hour

. If the Earth's magnetic field at the location is

4 \times 10^{- 4} T

and the angle of dip is

30 °

, then, the potential difference between the ends of the wing is

EASY

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

Define angle of declination at a place.

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:

MEDIUM

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

A magnetic compass needle oscillates

30

times per minute at a place where the dip is

45 °

and

40

times per minute where the dip is

30 °

. If

B_{1}

and

B_{2}

are the net magnetic fields due to the earth at the two places respectively, then the ratio

\frac{B_{1}}{B_{2}}

is approximately equal to

EASY

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

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

MEDIUM

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

Define magnetic declination. How does it depend on latitudes?

MEDIUM

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

Define angle of dip.

EASY

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

Where on the surface of the earth is the vertical component of earth's magnetic field zero?

MEDIUM

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

From separate magnet method of vibrational magnetometer, describe the method of comparison of the magnetic moment of two magnets under the following points: Observation table

EASY

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

Define magnetic declination.

EASY

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

Define magnetic declination

EASY

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

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