Home
Class 12
PHYSICS
Two parallel long wires carry currents i...

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

A

`3:4`

B

`5:3`

C

`7:11`

D

`11:7`

Text Solution

Verified by Experts

The correct Answer is:
b
Promotional Banner

Topper's Solved these Questions

  • MAGNETIC FIELD AND FORCES

    DC PANDEY|Exercise Match the following|4 Videos

  • INTERFERENCE AND DIFFRACTION OF LIGHT

    DC PANDEY|Exercise Level 2 Subjective|5 Videos

  • MAGNETICS

    DC PANDEY|Exercise MCQ_TYPE|1 Videos

Similar Questions

Explore conceptually related problems

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 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_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 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

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 :

DC PANDEY-MAGNETIC FIELD AND FORCES-Medical entrance s gallery
  1. A proton and helium nucleus are shot into a magnetic field at right an...

    Text Solution

    |

  2. Two charged particles have charges and masses in the ratio 2:3 and 1:4...

    Text Solution

    |

  3. A metal rod of length l cuts across a uniform magnetic field B with a ...

    Text Solution

    |

  4. A current of 2 A is made to flow through a coil which has only one tur...

    Text Solution

    |

  5. A long straight wire is carrying a current of 12 A . The magnetic fiel...

    Text Solution

    |

  6. The magnetic field at a point on the axis of a long solenoid having 5 ...

    Text Solution

    |

  7. In the diagram I(1),I(2) are the strength of the currents in the loop ...

    Text Solution

    |

  8. The adjacent figure shows, the cross-section of a long rod with its le...

    Text Solution

    |

  9. Two straight wires each 10 cm long are parallel to one another and sep...

    Text Solution

    |

  10. A conductor of length 5 cm is moved paralllel to itself with a speed o...

    Text Solution

    |

  11. On meter length of wires carriers a constant current. The wire is bent...

    Text Solution

    |

  12. A proton is moving in a uniform magnetic field B in a circular path of...

    Text Solution

    |

  13. The magnetic field in a certain region of space is given by B=8.35 xx1...

    Text Solution

    |

  14. A planar coil having 12 turns carries 15 A current. The coil is orient...

    Text Solution

    |

  15. A current i ampere flows along the inner conductor of a coaxial cable ...

    Text Solution

    |

  16. Two parallel long wires carry currents i(1) "and" i(2) with i(1) gt i(...

    Text Solution

    |

  17. A charged particle with a velocity 2xx10^(3) ms^(-1) passes undeflecte...

    Text Solution

    |

  18. Two similar coils of radius R are lying concentriclaly with their pl...

    Text Solution

    |

  19. When an electronl beam passes through and electric field they gain kin...

    Text Solution

    |

  20. A steel wire of length l has a magnetic moment M. It is bent into a se...

    Text Solution

    |