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

`11:7`

C

`7:11`

D

`5:3`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • SOURCES OF MAGNETIC FIELD

    CENGAGE PHYSICS|Exercise single correct Ansewer type|12 Videos

  • SOURCES OF MAGNETIC FIELD

    CENGAGE PHYSICS|Exercise Subjective type|11 Videos

  • SEMICONDUCTOR ELECTRONIC : MATERIALS, DEVICES AND SIMPLE CIRCUITS

    CENGAGE PHYSICS|Exercise QUESTION BANK|12 Videos

  • THERMAL PROPERTIES OF MATTER

    CENGAGE PHYSICS|Exercise Question Bank|40 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 :

CENGAGE PHYSICS-SOURCES OF MAGNETIC FIELD-single correct Answer Type
  1. A long straight wire carrying current of 30 A is placed in an exte...

    Text Solution

    |

  2. A current i is flowing in a straight conductor of length L. The magnet...

    Text Solution

    |

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

    Text Solution

    |

  4. The straight long conductors AOB and COD are perpendicular to each oth...

    Text Solution

    |

  5. What will be the resulatant field at the origin due to the four ind...

    Text Solution

    |

  6. AB and CD are long straight conductor, distance d apart, carrying a cu...

    Text Solution

    |

  7. Figure shows a square loop ABCD with edge length a. The resistance of ...

    Text Solution

    |

  8. Two thick wires and two thin wires, all of the same materais and sam...

    Text Solution

    |

  9. In the following figure a wire bent in the form of a regular polygon o...

    Text Solution

    |

  10. A coil carrying a heavy current and having large number of turns mount...

    Text Solution

    |

  11. An electron is revolving round a proton, producing a magnetic field of...

    Text Solution

    |

  12. A thin wire of length l is carrying a constant current. The wire is be...

    Text Solution

    |

  13. A neutral point is obtained at the centre of a vertical circular coil ...

    Text Solution

    |

  14. Two concentric coplanar circular loops of radii r(1) and r(2) carry cu...

    Text Solution

    |

  15. Two similar coils are kept mutually perpendicular such that their cent...

    Text Solution

    |

  16. A current i ampere flows in a circular arc of wire whose radius is R, ...

    Text Solution

    |

  17. In the figure shown there are two semicircles of radii r(1) and r(2) i...

    Text Solution

    |

  18. Find magneitc field at O

    Text Solution

    |

  19. An infinitely long straight conduction is bent into the shape as shown...

    Text Solution

    |

  20. A part of a long wire carrying a current i is bent into a circle of ra...

    Text Solution

    |