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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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Declination and Dip
Declination and Dip
10 Mins
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REVISE WITH CONCEPTS
Earth's Magnetism
Example
Definitions
Formulaes
Earth's Magnet Declination
Example
Definitions
Formulaes
Angle of Declination And Angle of Dip
Example
Definitions
Formulaes
QUICK SUMMARY WITH STORIES
Earth as a Magnet
2 mins read
Dip Circle
4 mins read
Declination and Dip
3 mins read
Basic Introduction to Earth's Magnetism
2 mins read
Elements of Earth's Magnetism
3 mins read
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
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>
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
>