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Consider the situation described in the previous problem. Suppose the current I enters the loop at the point A and leaves it at the point B. Find the magnetic field at the centre of the loop.

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HC VERMA-MAGNETIC FIELD DUE TO CURRENT-exercise
  1. Figure shows a square loop ABCD with edge length a. The resistance of ...

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  2. Figure shows a square loop of edge a made of a uniform wire. A current...

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  3. Consider the situation described in the previous problem. Suppose the ...

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  4. The wire ABC shown in figure forms an equilateral triangle. Find the m...

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  5. A wire of length l is bent in the form of an equilateral triangle and ...

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  6. A long wire carrying a current i is bent to form a plane angle alpha. ...

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  7. Find the magnetic field B at the centre of a rectangular loop of lengt...

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  8. A regular polygon of n sides is formed by bending a wire of total leng...

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  9. Each of the batteries shown in figure has an emf equal to 5 V. Show th...

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  10. A straight , long wire carries a current a current of 20A. Another wir...

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  11. Three coplanar parallel wires, each carrying a current of 10 A along t...

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  12. Two parallel wires separated by a distance of 10cm carry currents of 1...

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  13. Figure shows a part of an electric circuit. The wires AB, CD, and EF a...

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  14. A long, straight wire is fixed horizontally and carries a current of 5...

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  15. A square loop PQRS carrying a current of 6.0 A is placed near a long w...

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  16. A circular loop of one turn carries a current of 5.00 A. If the magnet...

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  17. A current - carrying circular coil of 100 turns and radius 5.0 cm pro...

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  18. An electron makes (3 xx 10^5) revolutions per second in a circle of ra...

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  19. A conducting circular loop of radius a is connected to two long, strai...

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  20. Two circular coils of radii 5.0 cm and 10 cm carry equal currents of 2...

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