Home
Class 12
PHYSICS
Two parallel wires 1 m apart carry curre...

Two parallel wires 1 m apart carry currents of 1A and 3 A respectively in opposite directions. The force per unit length acting between two wires is:

A

`6 xx 10^(-5) Nm^(-1)` repulsive

B

`6 xx 10^(-7) Nm^(-1)` repulsive

C

`6 xx 10^(-5) Nm^(-1)` attractive

D

`6 xx 10^(-7) Nm^(-1)` attractive

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • MODEL QUESTION PAPER 4

    SARAS PUBLICATION|Exercise EXERCISE|42 Videos

  • MODEL QUESTION PAPER 6

    SARAS PUBLICATION|Exercise EXERCISE|45 Videos

Similar Questions

Explore conceptually related problems

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

A short conductor of length 4 cm placed parallel to a long conductor of length 2 m near its centre. The conductors carry current of 2 and 5A respectively in opposite directions. What is the total force experienced by the long conductor when they are 2cm apart?

Two parallel wires carry currents of 20A and 40A in opposite directions. Another wire carrying a current antiparallel to 20A is placed midway between the two wires. The magnetic force on it will be

Two parallel wires carrying same current in the opposite direction will experience _________ .

The two long, straight wires carrying electric currents of 10A each in opposite directions. The separation between the wires is 5.0 cm. Find the magnetic field at a point P midway between the wires.

Two thin long parallel wires separated by a distance 'a' are carrying current I amp each . The magnitude of the force per unit length excited by one wire on the other is

Three coplanar parallel wires, each carrying a current of 10 A along the same direction, are placed with a separation 5.0 cm between the consecutive ones. Find the magnitude of the magnetic force per unit length acting on the wires.

Two long and parallel street wires carrying current of 2A and 5A in the opposite direction are separated by a distance of 1 cm. Find the nature and magnitude of the magnetic force between them.

Two parallel wires separated by a distance of 10cm carry currents of 10 A and 40 A along the same direction, Where should a third current be placed so that it experience no magnetic force?

SARAS PUBLICATION-MODEL QUESTION PAPER 5-EXERCISE
  1. Four identical cells of emf e and internal resistance r are to be conn...

    Text Solution

    |

  2. A parallel plate capacitor is charged and then isolated. The effect of...

    Text Solution

    |

  3. A spherical shell, of radius 10 cm is carrying a charge g. If the elec...

    Text Solution

    |

  4. Three point charges 3nC, 6nC and 9nC are placed at the corners of an e...

    Text Solution

    |

  5. In the circuit shown below, the ammeter and the voltmeter readings are...

    Text Solution

    |

  6. Two cells of emf E1 and E2 are joined in opposition (such that E1>E2)....

    Text Solution

    |

  7. If the velocity of light in a medium is 2.25 xx 10^(8) ms^(-1) then th...

    Text Solution

    |

  8. Two concentric coils each of radius equal to 2pi cm are placed at righ...

    Text Solution

    |

  9. The resistance of a bulb filament is 100 Omega at a temperature of 100...

    Text Solution

    |

  10. In Wheatstone network, P=2Omega,Q=2 Omega,R=2Omega and S = 3 Omega. Th...

    Text Solution

    |

  11. Core of electro magnets are made of ferromagnetic material which has:

    Text Solution

    |

  12. If there is no torsion in the suspension thread, then the time period ...

    Text Solution

    |

  13. Two parallel wires 1 m apart carry currents of 1A and 3 A respectively...

    Text Solution

    |

  14. A galvanometer of resistance 50 Omega gives a full scale deflection fo...

    Text Solution

    |

  15. A cyclotron is used to accelerate:

    Text Solution

    |

  16. A transformer is used to light a 100W and 110V lamp from 220V mains. I...

    Text Solution

    |

  17. In an LCR series circuit, at resonance

    Text Solution

    |

  18. An aircraft with a wingspan of 40 m flies with a speed of 1080 km//h i...

    Text Solution

    |

  19. Two coils have amutual inductance 0.005 H. The current changes in the ...

    Text Solution

    |

  20. The magnetic susceptibility of a paramagnetic material at -73 ^@ C is ...

    Text Solution

    |