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A square frame of side l carries a curre...

A square frame of side `l` carries a current produces a field `B` at its centre. The same current is passed through a circular loop having same perimeter as the square. The field at its centre is `B'`, the ratio of `B//B'` is

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`(8sqrt2)/(pi^(2))`
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MOTION-MAGNETISM -EXERCISE-3 (Level-II)
  1. A square frame of side l carries a current produces a field B at its c...

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  2. The magnetic induction of the field at the point O of a loop with curr...

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  3. Same current i is flowing in the three infinitely long wires along pos...

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  4. Find the magnetic induction at point O, if the current carrying wire i...

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  5. A wire carrying current I is shaped as shown. Section AB is a quarter ...

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  6. The figure shows a conductor of weight 1.0 N& length L=0.5 m placed on...

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  7. An electron gun G emits electons of energy 2 keV travelling in the pos...

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  8. The magnetic field due to a current carrying square loop of side a at ...

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  9. An infinte wire place along z-axis has current I(1) in positive z-dire...

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  10. A straight segment OC(of length L meter) of a circuit carrying a curre...

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  11. Three infinitely long conductors R, S and T are lying in a horizontal ...

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  12. A very long straight conductor has a circular cross- section of radius...

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  13. A very long straight conductor has a circular cross- section of radius...

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  14. In above problem show that the change in frquency of rotation caused b...

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  15. Zeeman effect. In Bohr’s theory of the hydrogen atom the electron can ...

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  16. Zeeman effect. In Bohr’s theory of the hydrogen atom the electron can ...

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  17. Four long wires each carrying current I as shown in the figure are pla...

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  18. Four long wires each carrying current I as shown in Fig. are placed a...

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  19. A stationary, circular wall clock has a face with a radius of 15cm. Si...

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  20. A stationary, circular wall clock has a face with a radius of 15cm. Si...

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