EASY
Earn 100

A point near the equator has: (H and V are horizontal and vertical components of Earth's magnetic field at a point)

50% studentsanswered this correctly

Important Questions on Magnetism and Matter

EASY
Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's 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:
EASY
Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism
A ship sailing due east according to mariner's compass. If the declination of the place is 10° east, the true direction of the ship is
MEDIUM
Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism
At a certain location in Africa, the north tip of the magnetic needle of a dip circle placed in the plane of magnetic meridian points 60o above the horizontal. The horizontal component of the earth's field is measured to be 0.16 G. At that position a compass points 12o west of the geographic north. Specify the magnitude of the earth's field at that location.
EASY
Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism
At a given place on the Earth, the angle between the Magnetic meridian and the Geographic meridian is called.....
EASY
Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism
Assertion: A freely suspended magnet points along the north-south direction.

Reason: Since the earth behaves as a magnet.
EASY
Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism
Aurora Borealis is a luminous electrical discharge in the upper layers of the atmosphere, which is visible more frequently in
EASY
Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism
If the vertical component of earth's magnetic field at a place is 3 times the horizontal component, then the value of dip at that place is
EASY
Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism
The angle between magnetic meridian and geographical meridian is called angle of _____.
EASY
Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism
The tangent galvanometers having coils of the same radius are connected in series. A current flowing in them produces deflections of 60o and 45o respectively. The ratio of the number of turns in the coil is:
EASY
Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism
The magnitude of the earth's magnetic field at a place is B0 and the angle of dip is δ. A horizontal conductor of length l, lying north-south, moves eastwards with a velocity v. The emf induced across the rod is
EASY
Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism
Assertion: A freely suspended magnet points along north-south direction.

Reason: Since earth behaves as magnet.
EASY
Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism
At a place, if the earth's horizontal and vertical components of magnetic fields are equal, then the angle of dip will be
EASY
Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism
At a given place on the Earth's surface, the horizontal component of earth's magnetic field is 3×10-5 T and resultant magnetic field is 6×10-5 T. The angles of dip at this place is
EASY
Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism
The lines of force due to earth's horizontal magnetic field are
EASY
Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism
The Earth's magnetic field at a certain place has a horizontal component of 0.3 Gauss and a total strength of 0.5 Gauss. Find the vertical component of earth's magnetic field and also find the angle of dip.
EASY
Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism
At a place the true value of angle of dip is 60°. If dip circle is rotated by ϕ° from magnetic meridian, the angle of dip is found to be tan-1⁡(2). Then the value of ϕ is
EASY
Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism
The Earth's magnetic field at a certain place has a horizontal component of 0.3 Gauss and a total strength of 0.5 Gauss. The angle of dip is tan-14n. The value of n is _____.
EASY
Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism
The angle between magnetic meridian and geographical meridian is called angle of _____.
EASY
Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism
At a given place on the Earth, the angle between the Magnetic meridian and the Geographic meridian is called.....
EASY
Physics>Electricity and Magnetism>Magnetism and Matter>The Earth's Magnetism
At a certain place, the angle of dip is 60° and the horizontal component of the earth's magnetic field BH is 0.8×10-4 T. The Earth's overall magnetic field is: