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A solenoid of 2m long & 3 cm diameter ha...

A solenoid of `2m` long `& 3 cm` diameter has 5 layers of winding of 500 turns per metre length in each layer `&` carries a current of `5A`. Find intensity of magnetic field at the centre of the solenoid.

Text Solution

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For long solenoic at the centre `B=mu_(0)ni`
`H=(B)/(mu_(0))=ni=(500xx2)5xx5`
`=2.5xx10^(4)(A)/(m)`
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NARAYNA-MOVING CHARGES AND MAGNETISM-EXERCISE - 4
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  2. A particle of charge +q and mass m moving under the influnce of a unif...

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  3. Two coaxil solenoids 1 and 2 of the same length are set so that one is...

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  4. A current loop ABCD is held fixed on the plane of the paper as shown i...

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  5. A current loop ABCD is held fixed on the plane of the paper as shown i...

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  6. A current carrying loop is placed in the non-uniform magnetic field wh...

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  7. Electric field strength vecE = E0 hati and vecB = B0 hati exists in ...

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  8. Two moving coil metres M(1) and M(2) have the following particular R(1...

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  9. A circular coil of 30 turns and radius 8.0 cm carrying a current of 6....

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  10. Two Concentric circular coils X and Y of radii 16 cm and 10cm lie in ...

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  11. Toroid has a core (non-ferromagnetic) of inner radius 25 cm and outer ...

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  12. A uniform magnetic field of 1*5T is in cylindrical region of radius 10...

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  13. A cubical region of space is filled with some uniform electric and mag...

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  14. Two long wires carrying current I1 and I2 are arranged as shown in fig...

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  15. A current carrying loop consists of 3 identical quarter circles of rad...

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  16. A multirange current meter can be constructed by using a galvanometer ...

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  17. A long straight wire carrying current of 25A rests on a table as shown...

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  18. A 100 turn rectangular coil ABCD (in XY plane) is hung from one arm of...

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  19. A rectangular conducting loop consists of two wires on two opposite si...

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  20. An electron and a position are released from (0, 0, 0) and (0, 0, 1*5R...

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  21. Five long wires A, B, C, D and E, each carrying currentl I are arrange...

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