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Class 12
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Physics
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Magnetism and Matter
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Earth's Magnetism
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Basic Introduction to Earths magnetism
Basic Introduction to Earths magnetism
10 Mins
Physics
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NEXT VIDEOS
Declination and Dip
10 mins
Elements of Earth's magnetism
14 mins
Derivations of Magnetic Field Intensities
14 mins
Para, dia, and ferromagnetic materials
16 mins
Para, dia, and ferromagnetic materials
16 mins
REVISE WITH CONCEPTS
Basic Knowledge of Magnetic Field of Earth
Example
Definitions
Formulaes
>
Earth's Magnetism
Example
Definitions
Formulaes
>
Earth's Magnet Declination
Example
Definitions
Formulaes
>
Terrestrial Magnetism And Terms Related To Geomagnetism
Example
Definitions
Formulaes
>
View more
QUICK SUMMARY WITH STORIES
Navigation Using Magnets
3 mins
Earth as a Magnet
2 mins
Dip Circle
4 mins
Declination and Dip
3 mins
Basic Introduction to Earth's Magnetism
2 mins
Elements of Earth's Magnetism
3 mins
View more
Important Questions
If a magnet is suspended at angle
3
0
o
to the magnetic meridian, the dip needle makes an angle of
4
5
o
with the horizontal. The real dip is :
Medium
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>
At a certain place, horizontal component is
3
times the vertical component. The angle of dip at this place is:
Medium
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>
In the magnetic meridian of a certain place, the horizontal component of the earth's magnetic field is
0
.
2
6
G
and the angle of dip is
6
0
o
. The magnetic field of the earth at this location is
Easy
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>
If
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:
Medium
NEET
View solution
>
The earth's magnetic field at the equator is approximately
0
.
4
G
. The earth's dipole moment is :
(
R
e
=
6
.
4
×
1
0
6
m
)
Medium
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>
If the angles of dip at two places are
3
0
∘
and
4
5
∘
respectively, then the ratio of horizontal components of earth's magnetic field at the two places will be
Medium
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>
The vertical component of earth's magnetic field at a place is
3
times the horizontal component the value of angle of dip at this place is?
Medium
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>
The earth's magnetic field at a certain place has a horizontal component of
0
.
3
G
and total strength
0
.
5
G
. Find angle of dip in
tan
−
1
.
Medium
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>
A compass needle whose magnetic moment is
6
0
A
m
2
pointing geographical north at a certain place where the horizontal component of earth's magnetic field is
4
0
×
1
0
−
6
W
b
m
−
2
experiences a torque of
1
.
2
×
1
0
−
3
N
m
.
The declination of the place is
Easy
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>
At a certain place, the angle of dip
3
0
o
and the horizontal component of earth's magnetic field is
0
.
5
0
oerested.The earth's total magnetic field (in oerested) is
Medium
View solution
>