Home
Class 12
PHYSICS
A long wire A carries a current of 10 am...

A long wire `A` carries a current of `10` amp. Another long wire `B`, which is parallel to `A` and separated by `0.1m` from `A`, carries a current of `5` amp, in the opposite direction to that in `A`. What is the magnitude and nature of the force experienced per unit length of `B`? `(mu_(0)=4pixx10^(-7)weber/amp-m)`

A

Repulsive force of `10^(-4)N//m`

B

Attractive force of `10^(-4)N//m`

C

Repulsive force of `2pixx10^(-5)N//m`

D

Attractive force of `2pixx10^(-5)N//m`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • KINETIC THEORY OF GASES

    ERRORLESS |Exercise QUESTIONS|126 Videos

  • MAGNETISM

    ERRORLESS |Exercise Assertion & Reason|1 Videos

Similar Questions

Explore conceptually related problems

Two long current carrying wires A and B separated by 20 cm are carrying currents of 10 A and 20 A respectively in the opposite directions. Find the magnitude and direction of magnitic field at a point 10 em from both the wires.

A solenoid of length 0.4 m and having 500 turns of wire carries a current of 3 amp. A thin coil having 10 turns of wire and of radius 0.01 m carries a current of 0.4 amp. The torque (in Nm) required to hold the coil in the middle of the solenoid with its axis perpendicular to the axis of the solenoid is ( mu_(0) = 4pi xx 10^(-7) V-s/A-m)

Two parallel wires have separation 0.1m and each carries 5A current.The force per metre on either wire is: ?

Two long parallel straight wires X and Y separated by a distance 5cm in air carry currents of 10A and 5A respectively in opposite directions. Calculate the magnitude and direction of force on a 20cm length of the wire Y. Figure

Two long parallel wires are separated by a distance of 2m. They carry a current of 1A each in opposite direction. The magnetic induction at the midpoint of a straight line connecting these two wires is

A long solenoid has 200 turns per cm and carries a current of 2.5 amps. The magnetic field at its centre is (mu_(0)=4pixx10^(-7)"weber"//amp-m)

A circular loop of radius 0.0157m carries a current of 2.0 amp. The magnetic field at the centre of the loop is (mu_(0)=4pixx10^(-7)"weber"//amp-m)

Two long parallel copper wires carry current of 5A each in opposite directions. If the wires are separated by a distance distance of 0.5m, then the force per unit length between the two wires is

Two long parallel copper wires carry currents of 5 A each in opposite directions. If the wires are separated by a distance of 0.5m , then the force between the two wires is

Two long straight parallel conductors separated by a distance of 0.5m carry currents of 5A and 8A in the same direction. The force per unit length experienced by each other is

ERRORLESS -MAGNETIC EFFECT OF CURRENT-Exercise
  1. Due to the flow of current in a circular loop of radius R, the magneti...

    Text Solution

    |

  2. The magnetic moment of a circular coil carrying current is

    Text Solution

    |

  3. A long wire A carries a current of 10 amp. Another long wire B, which ...

    Text Solution

    |

  4. A stream of electrons is projected horizontally to the right. A straig...

    Text Solution

    |

  5. The relation between voltage sensitivity 'sigma(V)' and current sensi...

    Text Solution

    |

  6. What is the shape of magnet in moving coil galvanometer to make the ra...

    Text Solution

    |

  7. If a wire of length l meter placed in uniform magnetic field 1.5 Tesla...

    Text Solution

    |

  8. A current i flows in a circular coil of radius r. If the coil is place...

    Text Solution

    |

  9. An arbitrary shaped closed coil is made of a wire of length L and a cu...

    Text Solution

    |

  10. A circular coil having N turns is made from a wire of length L meter. ...

    Text Solution

    |

  11. A small cylindrical soft iron piece is kept in a galvanometer so that

    Text Solution

    |

  12. A, B and C are parallel conductors of equal length carrying currents I...

    Text Solution

    |

  13. A straight conductor carries a current of 5A. An electron travelling w...

    Text Solution

    |

  14. Two galvanometers A and B require 3mA and 5mA respectively to produce ...

    Text Solution

    |

  15. Two long straight parallel conductors separated by a distance of 0.5m ...

    Text Solution

    |

  16. IF the current is doubled, the deflection is also doubled in

    Text Solution

    |

  17. Which is a vector quantity

    Text Solution

    |

  18. Three long straight wires A, B and C are carrying current as shown in ...

    Text Solution

    |

  19. Two long conductors, separated by a distance d carry current I(1) and ...

    Text Solution

    |

  20. The magnetic moment of atomic neon is

    Text Solution

    |