Home
Class 12
PHYSICS
Two parallel wires carrying equal curren...

Two parallel wires carrying equal currents `i_(1)` and `i_(2)` with `i_(1)gti_(2)`. When the current are in the same direction, the `10 mT`. If the direction of `i_(2)` is reversed, the field becomes `30 mT`. The ratio `i_(1)//i_(2)` is

A

`4`

B

`3`

C

`2`

D

`1`

Text Solution

Verified by Experts

The correct Answer is:
C
`10mT=(mu_(0))/(2pi(r//2)) (i_(1)-i_(2))`
`30 mT=(mu_(0))/(2pi(r//2)) (i_(1)+i_(2))`
Dividing : `i_(1)//i_(2)=2`
Promotional Banner

Topper's Solved these Questions

  • SOURCE AND EFFECT OF MAGNETIC FIELD

    A2Z|Exercise Magnetic Field Due To Circular Arc|69 Videos

  • SOURCE AND EFFECT OF MAGNETIC FIELD

    A2Z|Exercise Problems Based On Mixed Concepts|32 Videos

  • SOURCE AND EFFECT OF MAGNETIC FIELD

    A2Z|Exercise Magnetic Dipole|32 Videos

  • SEMICONDUCTOR ELECTRONICS

    A2Z|Exercise EXERCISE|29 Videos

  • WAVE OPTICS

    A2Z|Exercise Section D - Chapter End Test|29 Videos

Similar Questions

Explore conceptually related problems

Two parallel, long wires carry currents i_1 and i_2 with i_1gti_2 . When the currents are in the same direction, the magnetic field at a point midway between the wires is 10mu T. If the direction of i_2 is reversed, the field becomes 30mu T . The ration i_1/i_2 is

Two parallel, long wires carry current i_(1) and i_(2) with i_(1)gti_(2) . When the currents are in the same direction, the magnetic field at a point midway between the wires is 30 muT . If the direction of i_(1) is reversed , the field becomes 90muT . The ratio i_(1)//i_(2) is

Two parallel long wires carry currents i_(1) and i_(2) with i_(1) gt i_(2) .When the current are in the same direction, the magnetic field at a point midway between the wire is 20muT .If the direction of i_(1) ,is reversed.the field becomes 30muT .The ratio i_(1)//i_(2) is

Two parallel long wires carry currents i_(1) "and" i_(2) with i_(1) gt i_(2) .When the currents are in the same direction then the magnetic field midway between the wires is 10 mu T. when the direction of i_(2) is reversed ,then it becomes 40 mu T. then ratio of i_(1)//i_(2) is

Two parallel, long wires carry currents t_(1) "and" t_(2) with t_(1)gtt_(2) . When the currents are in the same direction, the magnetic field at a point midway between the wires is 10 mu T. If the direction of i_(2) is reversed, the field becomes 30 mu T. Find the ratio i_(1)i_(2) .

Two long parallel straight conductors carry current i_(1) and i_(2)(i_(1)gti_(2)) . When the currents are in the same directions, the magnetic field at a point midway between the wires is 20muT . If the direction of i_(2) is reversed, the field becomes 50muT . The ratio of the current i_(1)//i_(2) is :

Two long parallel wires carry currents i_(1) and i_(2) such that i_(1) gt i_(2) . When the currents are in the same direction, the magnetic field at a point midway between the wires is 6xx10^(-6)T . If the direction of i_(2) is reversed, the field becomes 3xx10^(-5)T . The ratio (i_(1))/(i_(2)) is

A2Z-SOURCE AND EFFECT OF MAGNETIC FIELD-Magnetic Field Due To Current
  1. A wire carrying current I and other carrying 2I in the sam direction p...

    Text Solution

    |

  2. Two long parallel wires P and Q are both perpendicular to the plane of...

    Text Solution

    |

  3. Two parallel wire carrying equal currents in opposite directions are p...

    Text Solution

    |

  4. Two parallel wires carrying equal currents i(1) and i(2) with i(1)gti(...

    Text Solution

    |

  5. ABCD is a square loop made of a uniform conductivity wire. The current...

    Text Solution

    |

  6. A wire in the from of a square of side 'a' carries a current i. Then t...

    Text Solution

    |

  7. Two long parallel wires are at a distance 2d apart. They carry stead...

    Text Solution

    |

  8. Consider a set of six infinite long staright parallel wires arranged p...

    Text Solution

    |

  9. A straight wire current element is carrying current 100A, as shown in ...

    Text Solution

    |

  10. The magnetic field at the centre of an equilateral triangular loop of ...

    Text Solution

    |

  11. Two wires AO and OC carry equal currents i as shown in Fig. One end of...

    Text Solution

    |

  12. An infinitely long wire carrying current I is along Y-axis such that i...

    Text Solution

    |

  13. The magnetic field at O due to current in the infinite wire forming a ...

    Text Solution

    |

  14. A current I flows through a thin wire shaped as regular polygon of n s...

    Text Solution

    |

  15. Two long wires PQR and MNP carry equal current Ias shown such that QR ...

    Text Solution

    |

  16. A circular current carrying coil has a radius R. The distance from the...

    Text Solution

    |

  17. The field normal to the plane of a wire of n turns and radis r which c...

    Text Solution

    |

  18. Two straight long conductors AOB and COD are perpendicular to each oth...

    Text Solution

    |

  19. An infinitely long conductor PQR is bent to form a light angle as sho...

    Text Solution

    |

  20. A long straight wire along the z- axis carries a current I in the neg...

    Text Solution

    |