Home
Class 12
PHYSICS
A straight wire of length 2 m carries a ...

A straight wire of length 2 m carries a current of 10 A. If this wire is placed in a uniform magnetic field of 0.15 T making an angle of `45^(@)` with the magnetic field, the applied force on the wire will

A

1.5 N

B

3 N

C

`3sqrt2N`

D

`(3)/(sqrt2)N`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • QUESTION PAPER 2012

    WB JEE PREVIOUS YEAR PAPER|Exercise Subject: Physics|38 Videos
  • QUESTION PAPER 2011

    WB JEE PREVIOUS YEAR PAPER|Exercise PHYSICS|39 Videos
  • QUESTION PAPER 2013

    WB JEE PREVIOUS YEAR PAPER|Exercise Category-III|5 Videos

Similar Questions

Explore conceptually related problems

Through a straight conduction wire of length 1 m 2, A current is flowing. If the wire is placed normal to a uniform magnetic field of strength 10^(-3)T , what will be the magnetic force acting on the wire

The magnetic moment of a a small bar magnet is 0.9a.m^(2) If it is placed in a uniform magnetic field making an angle of 30^(@) It , a torque of 0.063N.m Acts on it. What is the magnetic field ?

A straight conductor of length l m carrying a current I A is bent in the form of a semicirle. The magnetic field (in tesla) at the centre of the semicircle is

A straight conductor of length l m carrying a current 1A is bent in the form of a semicircle. The magnetic field (in tesla) at the centre of the semicircle is-

A circular coil of 30 turns and radius 8.0 cm carrying current of 6.0 A is suspended vertically in a uniform horizontal magnetic field of magnitude 1.0 T. The field lines make an angle of 60^@ with the normal to the coil. Calculate the magnitude of the counter torque, that must be applied to prevent the coil from turning.

WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2012-Subject: Physics
  1. A train approaching a railway platform with a speed of 20ms^(-1) start...

    Text Solution

    |

  2. A straight wire of length 2 m carries a current of 10 A. If this wire ...

    Text Solution

    |

  3. What is the phase difference between two simple harmonic motions repre...

    Text Solution

    |

  4. Heat is produced at a rate given by H in a resistor when it is connect...

    Text Solution

    |

  5. Two elements A and B with atomic numbers Z(A) and Z(B) are used to pro...

    Text Solution

    |

  6. The de Broglie wavelength of an electron moving with a velocity c/2 (c...

    Text Solution

    |

  7. Two infinite parallel metal planes, contain electric charges with char...

    Text Solution

    |

  8. A box of mass 2 kg is placed on the roof of a car. The box would remai...

    Text Solution

    |

  9. The decimal number equivalent to a binary number 1011001 is

    Text Solution

    |

  10. The frequency of the first overtone of a closed pipe of length l(1) i...

    Text Solution

    |

  11. The I-V characteristics of a metal wire at two different temperatures ...

    Text Solution

    |

  12. In a slide calipers, (m+1) number of vernier divisions is equal to m n...

    Text Solution

    |

  13. From the top of a tower, 80 m high from the ground, a stone is thrown ...

    Text Solution

    |

  14. A Wheatstone bridge has the resistances 10Omega,10Omega,10Omega and 30...

    Text Solution

    |

  15. An electric bulb marked as 50 W-200 V is connected across a 100 V supp...

    Text Solution

    |

  16. In a mercury thermometer the ice point (lower fixed point) is marked a...

    Text Solution

    |

  17. The magnetic flux linked with a coil satisfies the relation phi=4t^(2)...

    Text Solution

    |

  18. Water is flowing through a very narrow tube. The velocity of water bel...

    Text Solution

    |

  19. If the velocity of light in vacuum is 3xx10^(8)ms^(-1), the time taken...

    Text Solution

    |

  20. A charge +q is placed at the origin of X-Y axes as shown in the figure...

    Text Solution

    |