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A long wire is first bent into a circula...

A long wire is first bent into a circular coil of one turn and then into a circular coil of smaller radius, having n identical turns. If the same current passes in both the cases, find the ratio of the magnetric fields produced at the centre in the two cases.

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MODERN PUBLICATION-MAGNETIC EFFETS OF CURRENT-EXERCISE
  1. A long wire is first bent into a circular coil of one turn and then in...

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  2. State and explain Biot-Savart's theorem for a current carrying finite ...

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  3. A current 'I' flows in a conductor placed perpendicular to the plane o...

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  4. Explain Biot-Savart law for the magnetic field produced at a point due...

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  5. Explain Biot-Savart law for the magnetic field produced at a point due...

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  6. Derive an expression for magnetic field at the centre of circular curr...

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  7. Using Biot-Savart's law, derive an expression for magnetic field at th...

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  8. Using Biot-Savart's law, derive an expression for magnetic field at th...

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  9. Derive an expression for magnetic field at the centre of circular curr...

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  10. Using Biot-Savart's law, derive an expression for magnetic field at th...

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  11. Using Biot-Savart's law, derive an expression for magnetic field at th...

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  12. State Biot-Savart law. Using Biot-Savart law find the magnitude and di...

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  13. State Biot-Savert's law. Use this law to find the magnetic field at a ...

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  14. Derive an expression for magnetic field at the centre of circular curr...

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  15. How will the magnetic field at the centre of a circular coil carrying ...

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  16. State Ampere's circuital law.

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  17. What is Maxwell's modification of Ampere's circuital law?

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  18. State Ampere's circuital law. By using it derive an expression for mag...

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  19. State Ampere's circuital law.

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  20. Using Ampere's circuital theorem, calculate the magnetic field due to ...

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  21. State Ampere's circuital law. By using it derive an expression for mag...

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