Home
Class 12
PHYSICS
A straight wire of length 1 m, and carry...

A straight wire of length 1 m, and carrying a current of 1.8 A, is placed in a uniform magnetic field of induction 2T. If the magntic field is perpendicular to the length of the wire, then the force acting on the wire is

A

`1.8 N`

B

`3.6 N`

C

`0.9 N`

D

`2.5 N`

Text Solution

Verified by Experts

The correct Answer is:
B
`F=B I l=2 xx 1.8 =3.6 N`
Promotional Banner

Topper's Solved these Questions

  • KINETIC THEORY OF GASES ,THERMODYNAMICS AND RADIATION

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP - 9|30 Videos

  • MAGNETISM

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|15 Videos

Similar Questions

Explore conceptually related problems

A straight wire of length 0.5 metre and carrying a current of 1.2 ampere is placed in a uniform magnetic field of induction 2 tesla. If the magnetic field is perpendicular to the length of the wire , the force acting on the wire is

A straight wire of length 0.5 m carrying a current of 1.6 ampere is placed in a uniform magnetic field of induction 2 T. If the magnetic field is perendicular to the length of the wire, then force on the wire is

A long straight wire carrying current of 30 A is placed in an external uniform magnetic field of induction 4xx10^(4) T . The magnetic field is acting parallel to the direction of current. The magnitude of the resultant magnetic inuduction in tesla at a point 2.0 cm away form the wire is

An elastic circular wire of length l carries a current I . It is placed in a uniform magnetic field vecB (Out of paper) such that its plane is perpendicular to the direction of vecB . The wire will experience

MARVEL PUBLICATION-MAGNETIC EFFECTS OF ELECTRIC CURRENT-MCQ
  1. The strength of the magnetic field in a long solenoid having 5000 turn...

    Text Solution

    |

  2. A long solenoid carrying a current produces a magnetic field B along i...

    Text Solution

    |

  3. A straight wire of length 1 m, and carrying a current of 1.8 A, is pla...

    Text Solution

    |

  4. A charged particle of charge q moving with the velocity v, enters alon...

    Text Solution

    |

  5. A long solenoid carrying a current produces a magnetic field B alon...

    Text Solution

    |

  6. A long wire carries a steady curent . It is bent into a circle of one ...

    Text Solution

    |

  7. If a particle of charge 10^(-12) coulomb moving along thehat(x)-direct...

    Text Solution

    |

  8. A straight wire of diameter 0.4 mm carrying a current of 2A is replace...

    Text Solution

    |

  9. A long solenoid has 800 turns per meter length of solenoid. What is th...

    Text Solution

    |

  10. A solenoid is 2 m long and 4 cm in diameter. It has 4 layers of windin...

    Text Solution

    |

  11. A current of 2 A flows in an air core solenoid of length 1 m and numbe...

    Text Solution

    |

  12. A long solenoid of length L has a mean diameter D. It has n layers of ...

    Text Solution

    |

  13. Six wires carry currents I1=I A,I2=2A,I3=3A,I4=1 A,I5=4 A and I6=5 A. ...

    Text Solution

    |

  14. A vertical straight conductor carries a current vertically upwards. A ...

    Text Solution

    |

  15. Five very long insulated straight wires are bound together to form a s...

    Text Solution

    |

  16. The magnetic induction due to toroidal solenoid is independent of

    Text Solution

    |

  17. A current of 1.6 A flows through a long solenoid, having 8 turns/cm. T...

    Text Solution

    |

  18. Toroid is a

    Text Solution

    |

  19. If a current is passed through a spring then the spring will

    Text Solution

    |

  20. A straight section PQ of a circuit lise along the X-axis from x=-a/2 t...

    Text Solution

    |