Home
Class 12
PHYSICS
An infinitely long conductor PQR is bent...

An infinitely long conductor PQR is bent to form a right angle as shown. A current I flows through PQR. The magnetic field due to this current at the point `M is B_(1)`. Now, another infinitely long straight conductor QS is connected at Q so that the current is `I//2` in QR as well as in QS, the current in PQ remaining unchanged. The magnetic field at M is now `B_(2) = 4 mT`. Find the value of `B_(1) ("in" mT)`.

A

`1//2`

B

`1`

C

`2//3`

D

`2`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • APPENDICES ( REVISION EXERCISE )

    AAKASH SERIES|Exercise REVISION EXERCISE (MAGNETISM AND MATTER )|52 Videos

  • APPENDICES ( REVISION EXERCISE )

    AAKASH SERIES|Exercise REVISION EXERCISE (CUTTENT ELECTRICITY )|108 Videos

  • ALTERNATING CURRENT

    AAKASH SERIES|Exercise EXERCISE - III|24 Videos

  • APPENDICES (REVISION EXERCISE)

    AAKASH SERIES|Exercise LAW OF MOTION|128 Videos

Similar Questions

Explore conceptually related problems

An infifnitely long conductor PQR is bent to form a right angle as shown in figure. A current I flows through PQR . The magnetic field due to this current at the point M is H_1 Now, another infinitely long straight conductor QS is connected at Q , so that current is I/2 in QR as well as in QS , the current in PQ remaining unchanged. The magnetic field at M is now H_2 . The ratio H_1/H_2 is given by

Find the magnetic field at centre P due to current i in the conductor as shown in fig.

The magnetic field at the origin due to the current flowing in the wire is

The magnetic field at the origin due to the current flowing in the wire is

The magnetic field strength at a point P distant r due to an infinite straight wire carrying a current i is as shown in the figure

An infinitely long conductor is bent into a circle as shown in figure. It carries a current I ampere and the radius of loop is R metre. The magnetic induction at the centre of loop is

The magnetic field in a straight current carrying conductor wire is:

Find magnetic field at O due to the current carrying conductor as shown in the figure.

The magnetic field at O due to current in the infinite wire forming a loop as a shown in Fig.

A long current carrying wire is bent as shown. The magnetic field induction at O is

AAKASH SERIES-APPENDICES ( REVISION EXERCISE )-REVISION EXERCISE (MOVING CHANGES & MEGNETISM)
  1. Thick and thin wires give rise to 3 different squares x,y and z as sho...

    Text Solution

    |

  2. If the resistance of the upper half of a rigid loop is twice of that o...

    Text Solution

    |

  3. An infinitely long conductor PQR is bent to form a right angle as show...

    Text Solution

    |

  4. A straight conductor of length 32 cm carries a current of 30A. Magneti...

    Text Solution

    |

  5. Two parallel long wires carry currents 18A and 3A. When the currents a...

    Text Solution

    |

  6. Due to straight current carrying conductor, a null point occurred at p...

    Text Solution

    |

  7. A long straight wire along the Z-axis carries a current I in the negat...

    Text Solution

    |

  8. A wire carrying a current i is first bent in the form of a square of s...

    Text Solution

    |

  9. Two long mutually perpendicular conductors carrying currents I1 and I2...

    Text Solution

    |

  10. Two long parallel wires carrying currents 2.5 A and I (ampere) in the ...

    Text Solution

    |

  11. A toroid has a core (non-ferromagnetic) of inner radius 25 cm and oute...

    Text Solution

    |

  12. In the shown in the figure AC and BD are straight lines and CED and AF...

    Text Solution

    |

  13. A solenoid of length 'l' has N turns of wire closely spaced, each turn...

    Text Solution

    |

  14. A 3.0 cm wire carrying a current of 10 A is placed inside a solenoid p...

    Text Solution

    |

  15. A closely wound solenoid of 800 turns and area of cross-section 2.5xx1...

    Text Solution

    |

  16. If a solenoid of magnetic moment 0.6JT^(-1) is free to turn about th...

    Text Solution

    |

  17. A solenoid of 1000 turns is wound uniform on a glass tube of 50cm long...

    Text Solution

    |

  18. A solenoid of length 'l' has N turns of wire closely spaced, each turn...

    Text Solution

    |

  19. A closely would solenoid of 2000 turns and area of cross-section 1.6xx...

    Text Solution

    |

  20. A Rowland ring of mean radius 15 cm has 3500 turns of wire wound on a ...

    Text Solution

    |