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What is the magnetic field at the centre...

What is the magnetic field at the centre C of the circular loop shown in Fig.?

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BINA LIBRARY-ELECTROMAGNETISM-EXERCISE
  1. Write three disadvantages of friction.

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  2. How does the magnetic field at the centre of a current carrying circul...

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  3. What is the magnetic field at the centre C of the circular loop shown ...

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  4. Does a magnetic field exert a force on a static charge?

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  5. When a charged particle moves in a magnetci field does the kinetic ene...

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  6. Explain why earth's magnetic field does not affect the working of a mo...

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  7. Explain why two parallel wires carrying currents in opposite direction...

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  8. If two parallel conducting wires carry current in the same direction, ...

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  9. Why an ammeter has low resistance while a voltmeter has high resistanc...

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  10. Why is a voltmeter connected in parallel with a circuit?

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  11. Can a magnetic field increase the K.E. of a charged particle moving th...

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  12. By mistake, a voltmeter is connected in series and an ammeter In paral...

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  13. Under what condition does an electron moving through a magnetic field ...

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  14. A magnetic needle is placed on a cork floating on a lake in the northe...

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  15. A diamagnetic substance is placed in the middle between two magnetic p...

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  16. A small magnet is pivoted to move freely in the magnetic meridian. At ...

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  17. If a bar magnet is cut into two equal parts along the magnetic axis, t...

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  18. Explain why an unmagnetised piece of iron is attracted by a bar magnet...

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  19. Why should the material used for making permanent magnet have high coe...

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  20. "A soft iron core in solenoid acts as an electromagnet". Explain.

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