Home
Class 12
PHYSICS
A very long straight conducting wire, ly...

A very long straight conducting wire, lying along the z-axis, carries a current of 2A. The integral `ointvecB.dvecl` is computed along the straight line PQ, where P has the coordinates `(2cm,0,0)` and Q has the coordinates `(2cm, 2cm ,0)`. The integral has the magnitude (in SI units)`

A

zero

B

`8pixx10^(-7)`

C

`2pixx10^(-7)`

D

`pixx10^(-7)`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • NTA JEE MOCK TEST 69

    NTA MOCK TESTS|Exercise PHYSICS|24 Videos

  • NTA JEE MOCK TEST 71

    NTA MOCK TESTS|Exercise PHYSICS|25 Videos

Similar Questions

Explore conceptually related problems

A very long straight conducting wire, lying along the z-axis, carries a current of 2A. The integral ointvecB.dvecl is computed along the straight line PQ, where P has the coordinates (2cm,2cm,0) and Q has the coordinates (2cm, 2cm ,0) . The integral has the magnitude (in SI units)

KM is a straight line of 13 units If K has the coordinates (2, 5) and M has the coordinates (x,-7) , find the possible values of x

A long straight wire along the z-axis carries a current I in the negative z-direction. The magnetic vector field B at a point having coordinate (x,y) on the z=0 plane is:

A long straight wire along the z- axis carries a current I in the negative z- direction . The magnetic vector field vec(B) at a point having coordinates (x,y) in the Z = 0 plane is

A long straight wire along the z-axis carries a current I in the negative z-direction. The magnetic vector field vec(B) at a point having coordinnates (x, y) in the z = 0 plane is

A very long straight wire carries a current I. At the instant when a charge +Q at point P has velocity vecV , as shown, the force on the charge is

A point Q at a distance 3 from the point P(1, 1, 1) lying on the line joining the points A(0, -1, 3) and P has the coordinates

A long conducting wire of radius 1 cm carrying current of 1 A placed with its axis coinciding with X-axis. Find the magnetic field at point having coordinates (0.5 cm, 0.5 cm ) .

NTA MOCK TESTS-NTA JEE MOCK TEST 70-PHYSICS
  1. A black rectangular surface of area A emits energy E per second at 27^...

    Text Solution

    |

  2. The ratio of the speed of sound in nitrogen gas to that in helium gas,...

    Text Solution

    |

  3. A very long straight conducting wire, lying along the z-axis, carries ...

    Text Solution

    |

  4. At the instant t=0, a force F=kt (k is a constant) acts on a small bod...

    Text Solution

    |

  5. Assuming that about 20 M eV of energy is released per fusion reaction ...

    Text Solution

    |

  6. A block is hanged from spring in a cage. Elongation in spring is ‘x(1)...

    Text Solution

    |

  7. Two communicating vessels contain mercury. The diameter of one vessel ...

    Text Solution

    |

  8. In the figure shown , for an angle of incidence 45^(@), at the top sur...

    Text Solution

    |

  9. A weightless rod of length l carries two equal masses m one fixed at t...

    Text Solution

    |

  10. In a common emitter transistor amplifier, the output resistance is 500...

    Text Solution

    |

  11. A calorimeter contains 0.2 kg of water at 30^(@)C 0.1 kg of water at 6...

    Text Solution

    |

  12. The dimensional formula of mobility is .

    Text Solution

    |

  13. The intensity ratio of two coherent sources of light is p. They are i...

    Text Solution

    |

  14. The fundamental frequency of a closed organ pipe of length 20 cm is eq...

    Text Solution

    |

  15. An engine of power 58.8 k W pulls a train of mass 2xx10^(5)kg with a v...

    Text Solution

    |

  16. A 5000 kg rocket is set of vertical firing. The exhaust speed is 800" ...

    Text Solution

    |

  17. A particle describes a horizontal circle in a conical funne whoses inn...

    Text Solution

    |

  18. A 10 muF capacitor is charged to a potential difference of 50 V and is...

    Text Solution

    |

  19. A particle is projected from the earth's surface with a velocity of "5...

    Text Solution

    |

  20. A proton, when accelerated through a potential differnece of V = 29.6 ...

    Text Solution

    |