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BINA LIBRARY-ELECTROMAGNETISM-EXERCISE
- A magnetic needle is placed on a cork floating on a lake in the northe...
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- A diamagnetic substance is placed in the middle between two magnetic p...
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- A small magnet is pivoted to move freely in the magnetic meridian. At ...
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- If a bar magnet is cut into two equal parts along the magnetic axis, t...
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- Explain why an unmagnetised piece of iron is attracted by a bar magnet...
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- Why should the material used for making permanent magnet have high coe...
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- "A soft iron core in solenoid acts as an electromagnet". Explain.
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- An infinitely long straight current carrying wire produces a magnetic ...
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- An infinitely long straight current carrying wire produces a magnetic ...
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- Find the force between two straight parallel wires, each of length one...
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- In a chamber , a uniform magnetic field of 6.5G(1G=10^−4T) is maintain...
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- A proton enters a uniform magnetic field of intensity 1.5 T in a direc...
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- A proton enters a magnetic field of flux density 1.5Wb/m^2 with a sp...
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- A coil of 200 turns has a cross-sectional area 900 mm It carries a cur...
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- A coil of 200 turns has a cross-sectional area 900 mm It carries a cur...
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- A galvanometer having a coil resistance 120Omega shows full scale defl...
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- A dipole of magnetic moment (2.5 Am^2) is deflected through 30° from m...
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- A freely suspended magnet of moment (0.98 Am^2) is deflected through '...
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- Find the value of the vertical component and resultant intensity of th...
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- An electron is revolving along a circular path of radius 1 À with a fr...
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