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MODERN PUBLICATION-TEXTUAL QUESTIONS-EXERCISE
- Above curie temperature
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- Steel si preferred for making permanent magnets, whereas soft iron is ...
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- A permanent magnet magnet has the properties of retentivity and coerci...
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- An electromagnet uses
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- Core of transformer is made up of
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- A current I flows along the length of an infinitely logn, straight and...
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- A power line lies along east-west direction and carries a current of 1...
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- A moving coil galvanometer has a resistance of 900 ohm. In order to se...
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- A moving coil galvanometer of resistance 100Omega is used as an ammete...
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- The magnetic field lines
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- A paricle of charge q and mass m moves in a circular orbit of radius r...
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- Two particles , each of mass m and charge q, are attached to the two e...
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- A bar magnet is placed inside a non-uniform magnetic field. It experie...
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- The angle between the earth's magnetic axis and earth's geographic axi...
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- The line joining the points of horizontal component of earth's magneti...
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- If a diamagnetic solution is poured into a U-tube and one am of this U...
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- The mensicus of a liquid contained in one of the limbs of a narrow U-t...
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- A magnetic needle suspended by a silk thread is vibrating in the earth...
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- Electromagnets are made of soft iron, because soft iron has
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- Tesla is the unit of
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