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What is geographical north pole?

Important Questions on Magnetism and Matter

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The strength of the Earth’s magnetic field is
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The horizontal component of the earth's magnetic field is 3.6×10- tesla where the dip angle is 60°. The magnitude of the earth's magnetic field is,
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At certain place, horizontal component is 13 times the vertical component. The angle of dip is
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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 4×10-4 T and the angle of dip is 30°, then, the potential difference between the ends of the wing is
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At a certain place, the horizontal component of earth's magnetic field is 13 times the vertical component. The angle of dip at that place is
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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:
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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 B1 and B2 are the net magnetic fields due to the earth at the two places respectively, then the ratio B1B2 is approximately equal to
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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
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A magnet makes 40 oscillations per minute at a place having magnetic field intensity of 0.1×105 T. At another place, it takes 2.5sec to complete one vibration. The value of earth's horizontal field at that place is
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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
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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
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At a given place on the Earth, the angle between the Magnetic meridian and the Geographic meridian is called.....
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At the magnetic north pole of the earth, the value of the horizontal component of earth's magnetic field and angle of dip are respectively -
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The earth's magnetic field at a certain place has a horizontal component 0.3 Gauss and the total strength 0.5 Gauss. The angle of dip is
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Two coils, each of 100 turns, are held such that one line in the vertical plane with their centres coinciding. The radius of the vertical coil is 20 cm and that of the horizontal coil is 30 cm. How would you neutralize the magnetic field of the earth at their common centre? What is the current to be passed through each coil? Horizontal of earth's magnetic induction =3.49 × 10-5 T and angle of dip =30°..
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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
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Calculate the angle of dip, if a dip needle oscillating in a vertical plane make 40 oscillations per minute in a magnetic meridian and 30 oscillations per minute in a vertical plane at right angle to the magnetic meridian
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At the magnetic poles of the earth, a compass needle will be
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At the magnetic poles of the earth, a compass needle will be
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The angle of dip at a certain place on earth is 60° and the magnitude of the earth's horizontal component of the magnetic field is 0.26 G. The magnetic field at the place on earth is