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Earn 100

What do you mean by dynamo effect?

Important Questions on Magnetism

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What do you mean by magnetic dip circle?
HARD
The electric current produced by convective motion of metallic fluid in the outer core of the earth is known as
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The straight line passing through the geographical North and South poles of the Earth is called its :
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Explain the theory which explains the origin of Earth's magnetism.
HARD
At 45° to the magnetic meridian, the apparent dip is 30°.The true dip is: 
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A dip circle shows an apparent dip of 60°. At that place, the true dip is 45°. If the dip circle is rotated by 90°, what will be the apparent dip?

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How will you measure the angle between the horizon and the Earth's magnetic field?
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The net magnetic field at neutral points is _____.
HARD
At certain place, the horizontal component of earth's magnetic field is 3.0 G. The angle of dip at the place is 30°. The magnetic field at that place would be
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When the north pole of bar magnet points towards geographic south the null points are located on 
MEDIUM
Draw the magnetic lines of force when the north pole of bar magnet points towards geographic south.
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Define the term magnetic meridian.
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What do Isogonic lines on the magnetic map connect?
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Explain about aclinic lines.
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Complete the sentence:

The neutral points of a bar magnet kept with it's the North Pole pointing towards the geographical North Pole are located_____.

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What do isoclinic lines join?
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The angle between magnetic meridian and geographical meridian is called angle of _____.
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Complete the sentence:

At a neutral point , the resultant magnetic field is _____.

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Aclinic lines are the lines that passes through those spots on the earth's surface where the magnetic inclination is :
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Define the term geographical meridian.