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MODERN PUBLICATION-MAGNETIC DIPOLE & EARTH'S MAGNETISM-EXERCISE
- Compare the magnetic fields due to a solenoid and a bar magnet.
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- Explain three magnetic elements of earth's magnetic field at a given p...
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- What is probable cause of earth's magnetism?
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- Define magnetic elements of Earth.
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- What is a neutral point in a magnetic field of a bar magnet.
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- What is a neutral point in a magnetic field of a bar magnet.
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- A bar magnet has a magnetic moment of 10 A m^2. If its magnetic length...
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- Two equal magnetic poles placed 25 cm apart in air exert a fore o 4xx1...
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- Two magnetic poles, one of which is four times stronger than the other...
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- Two like magnetic poles of strenth 25 A m and 64 A m are situated 1.0 ...
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- Two identical magnetic with a length 10 cm and weight 50 g of each are...
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- A magnetised steel wire 31.4cm long has a pole strength of 0.2Am. It i...
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- Two thin bar magnets of pole strengths 4Am and 7Am respectively and le...
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- A planar loop of irregular shape encloses an area of 7.5xx10^-4m^2, an...
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- A circular coil of 300 turns and diameter 14 cm carries a current of 1...
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- A circular coil of 200 turns and radius 0.2 m carries a current of 14 ...
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- An electron in an atom revolves around the nucleus in an orbit of radi...
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- In a hydrogen atom, the electron moves in an orbit of radius 0.5 overs...
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- In hydrogen atom, an electron is making 6.6xx 10^15 r.p.s around the n...
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- The electron in the hydrogen atom is moving with a speed of 2.3 xx 10^...
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