EASY
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What is the direction of horizontal component of the earth's magnetic field?

Important Questions on Magnetic Effect of Electric Current

EASY
Science>Physics>Magnetic Effect of Electric Current>Earth's Magnetic Field
The total intensity of the earth's magnetic field at equator is 5 units. What will be its value at the poles?
EASY
Science>Physics>Magnetic Effect of Electric Current>Earth's Magnetic Field
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
Science>Physics>Magnetic Effect of Electric Current>Earth's Magnetic Field

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
Science>Physics>Magnetic Effect of Electric Current>Earth's Magnetic Field
Define the elements of the earth's magnetic field.
MEDIUM
Science>Physics>Magnetic Effect of Electric Current>Earth's Magnetic Field
At certain place, horizontal component is 13 times the vertical component. The angle of dip is
MEDIUM
Science>Physics>Magnetic Effect of Electric Current>Earth's Magnetic Field
The magnetic field and angle of dip at a place on the earth are 0.3 G and 30°, respectively. The value of vertical component of the earth’s magnetic field at the place is _____.
EASY
Science>Physics>Magnetic Effect of Electric Current>Earth's Magnetic Field
The strength of earth's magnetic field on the earth's surface is of the order: of
EASY
Science>Physics>Magnetic Effect of Electric Current>Earth's Magnetic Field
Define magnetic declination.
EASY
Science>Physics>Magnetic Effect of Electric Current>Earth's Magnetic Field
A Jet plane is travelling west at 450 metres per second. If the horizontal component of Earth's magnetic field is 4×10-4 Tesla and angle of dip is 30°, Then the vertical component is
EASY
Science>Physics>Magnetic Effect of Electric Current>Earth's Magnetic Field
The relation between Bv, Bh and B is _____
EASY
Science>Physics>Magnetic Effect of Electric Current>Earth's Magnetic Field
What is the angle of dip at a place where the horizontal component BH and vertical component BV of earth's magnetic field are equal:
EASY
Science>Physics>Magnetic Effect of Electric Current>Earth's Magnetic Field
Choose the wrong statement.
MEDIUM
Science>Physics>Magnetic Effect of Electric Current>Earth's Magnetic Field
Write the name of magnetic elements of earth and also define them.
EASY
Science>Physics>Magnetic Effect of Electric Current>Earth's Magnetic Field
The horizontal component of the earth's magnetic field at a place is 0.25×10-4Wb/m2 and its vertical component is 0.35×10-4Wb/m-4. Then the earth's total magnetic field at that place is
EASY
Science>Physics>Magnetic Effect of Electric Current>Earth's Magnetic Field
Define angle of dip. Write value of angle of dip at magnetic poles of earth.
EASY
Science>Physics>Magnetic Effect of Electric Current>Earth's Magnetic Field
What direction compass needle points at poles? Which needle to be used at poles?
EASY
Science>Physics>Magnetic Effect of Electric Current>Earth's Magnetic Field

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

EASY
Science>Physics>Magnetic Effect of Electric Current>Earth's Magnetic Field
If BH=4×10-5 T and Bv=2×10-5 T, then the Earth's total field at the place is (in T):
EASY
Science>Physics>Magnetic Effect of Electric Current>Earth's Magnetic Field
The strength of the Earth’s magnetic field is
MEDIUM
Science>Physics>Magnetic Effect of Electric Current>Earth's Magnetic Field
If θ1 and θ2 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