Home
Class 12
PHYSICS
A current i is flowing in a conductor PQ...

A current i is flowing in a conductor PQRST shaped as shown in the figure. The radius of curved part QRS is r and length of straight portions PQ and ST is very large. The magnetic field at the centre O of the curved part is -

A

`3/2`

B

`3/8`

C

`9/2`

D

`9/8`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • JEE MOCK TEST 15

    NTA MOCK TESTS|Exercise MCQS (PHYSICS)|25 Videos
  • JEE MOCK TEST 18

    NTA MOCK TESTS|Exercise PHYSICS|25 Videos

Similar Questions

Explore conceptually related problems

A current I is flowing in a conductor shaped as shown in figure. The radius of the curved part is r and length of straight portion is very large. Find the magnetic field induction at the centre O.

A current I is flowing through the loop , as shown in the figure . The magnetic field at centre O is

A current I flows along a thin wire shaped as shown in figure. The radius of the curved part of the wire is r. The field at the centre O of the coil is:

A current I(=4A) flows along a thin wire PQRS shaped as shown in figure. The radius of the curved part of the wire is 10*0cm . The angle theta=90^@ . Find the magnitude of the total magnetic field at the point O.

A current l flows through a closed loop as shown in figure .The magnetic field at the centre O is

In the figure, the curved part represents arc of a circle of radius x . If it carries a current I then the magnetic field at the point O is

An infinitely long straight conductor is bent into the shape as shown in figure. It carries the current I and radius of the circular loop is a, then the magnetic field at the centre of the loop is ______

NTA MOCK TESTS-JEE MOCK TEST 17-PHYSICS
  1. A heating curve has been plotted for a solid object as shown in the fi...

    Text Solution

    |

  2. In the measurement of resistance of a wire using Ohm's the plot betwee...

    Text Solution

    |

  3. In young's double slit experiment, the screen is kept 1.6m from the sl...

    Text Solution

    |

  4. The charge on the 4muF capacitor in the steady state is

    Text Solution

    |

  5. Water from a tap emerges vertically downwards an intial speed of 1 m/s...

    Text Solution

    |

  6. A current i is flowing in a conductor PQRST shaped as shown in the fig...

    Text Solution

    |

  7. A particle having mass m and charge q is released from the origin in a...

    Text Solution

    |

  8. Electrons having kinetic energy 30 eV are made to collide with atomic ...

    Text Solution

    |

  9. The probability that a particular nucleus of .^(38)Cl will undergo bet...

    Text Solution

    |

  10. P - V diagram of a diatomic gas is a straight line parallel to P-axis....

    Text Solution

    |

  11. An object is moving towards a mirror with a velocity of 10 ms^(-1) as ...

    Text Solution

    |

  12. Two concentric spherical shells of masses and radii m(1), r(1) and m(2...

    Text Solution

    |

  13. The zenar diode normally operates under reverse bias conditions, the m...

    Text Solution

    |

  14. An LCR series circuit is connected to an oscillator (AC supply) having...

    Text Solution

    |

  15. The ends of a stretched wire of length l are fixed at x = 0 and x = l....

    Text Solution

    |

  16. Find the electric flux (in S.I. unit) through the rectangular plate ab...

    Text Solution

    |

  17. water rises in a capillary tube to a height of 1 cm. In another capill...

    Text Solution

    |

  18. A 6V battery of internal resistance 1 Omega is connected across a unif...

    Text Solution

    |

  19. A disc of mass m and radius R is attached to a rectangular plate of th...

    Text Solution

    |

  20. A closed organ pipe and an open organ pipe of same length produce 4 be...

    Text Solution

    |