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A current of 0.1A passes through a circu...

A current of 0.1A passes through a circular coil, 15 cm in diameter and consisting of 50 closely wound time of fine insulated wire. Calculate the intensity of field (H-vector) (i) at the center of the coil, (ii) at a point on its axis 7.5 cm from the center.

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The correct Answer is:
`33.33 Am^(-1)`, `11.79Am^(-1)`
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NN GHOSH-MAGNETIC EFFECT OF CURRENT-Exercises
  1. Calcualte the current in amperes through a circular loop of 40 turns a...

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  2. A circular coil has 63 turns, each of radius 22cm. It is placed in the...

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  3. A circular coil with 10 turns of mean radius 10 cm is placed in the ma...

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  4. A current of 0.1A passes through a circular coil, 15 cm in diameter an...

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  5. Calculate the magnetic field at the center of a regualr hexagon, 10 cm...

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  6. Two long, straight parallel conductors each carrying 2A current in the...

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  7. Calculate the magnetic field at the orthocenter of an equilateral tria...

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  8. Calculate the magnetic field at the corner of a right angled triangle ...

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  9. The circular coil of tangent galvanometer is set at right angles to th...

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  10. A long thin wire is placed along the y-axis (just outside) of a frame ...

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  11. A circular loop of radius 10 cm carries a current of 15A. At its cente...

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  12. Two long straight conductors carrying current I are located at the cor...

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  13. A thin disc of dielectric material, with a total charge +q distributed...

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  14. A conductor of lengh l is placed in the east-west line on a table. Sud...

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  15. A long wire is bent into the shape shown in the figure. Without cross-...

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  16. Two long straight conductors are connected radially to two arbitary po...

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  17. Calculate the force of attraction per unit length between two long str...

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  18. A wire of c.s.S = 2.5 mm^(2) is bent to make the three sides of a squa...

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  19. A current I flows along a thin-walled, long, half-cylinder of radius R...

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  20. Find the magnetic induction at the point O of the following figures if...

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