Home
Class 12
PHYSICS
A conducting loop of resistance R and ra...

A conducting loop of resistance R and radius r has its centre at the origin of the coordinate system in a magnetic field B, When it is rotated about y-axis through `90^(@)`, net charge flown in the loop is directly proportional to -

A

`B^(-1)`

B

`R`

C

`r^(2)`

D

`r`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    MOTION|Exercise EXERCISE-4 (LEVEL-II)|13 Videos
  • ELECTRONICS - SEMI CONDUCTOR

    MOTION|Exercise EXERCISE - 3|29 Videos
MOTION-ELECTROMAGNETISM-Exercise
  1. The variation of magnetic susceptibility (chi) with absolute temperatu...

    Text Solution

    |

  2. A conducting loop is pulled with a constant velocity towards a region ...

    Text Solution

    |

  3. A conducting loop of resistance R and radius r has its centre at the o...

    Text Solution

    |

  4. A small conducting circular ring of area 2 mm2 is placed coplanerly wi...

    Text Solution

    |

  5. A conducting square loop edge length a and resistance R is in a unifor...

    Text Solution

    |

  6. A wire is in the form of a semicircle of radius r. One end is attached...

    Text Solution

    |

  7. A circular coil of radius a and having N turns is placed at centre of ...

    Text Solution

    |

  8. In the circuit shown in fig.. Time constant and steady state current w...

    Text Solution

    |

  9. Through an induction coil of L = 0.2 H, an a.c. current of 2A is passe...

    Text Solution

    |

  10. When the current in a coil charges from 2A to 4A in 0.05 s, emf of 8 v...

    Text Solution

    |

  11. When the current in a coil charges from 2A to 4A in 0.05 s, emf of 8 v...

    Text Solution

    |

  12. A coil having inductance and L and resistance R is connected to a batt...

    Text Solution

    |

  13. Two circular, similar, coaxial loops carry equal currents in the same...

    Text Solution

    |

  14. A solenoid of inductance 50 mH and resistance 10 Omega is connected ...

    Text Solution

    |

  15. A conductor rod AB moves parallel to X-axis in a uniform magnetic fiel...

    Text Solution

    |

  16. 5.5 × 10^(-4) magnetic flux lines are passing through a coil of resist...

    Text Solution

    |

  17. The electric current in a circuit is given by I = i0 (t/(tau)) for som...

    Text Solution

    |

  18. A series AC circuit has a resistance of 4omega and an inductor of reac...

    Text Solution

    |

  19. An inductor (L) and resistance (R) are connected in series with an AC ...

    Text Solution

    |

  20. In an LR-circuit, the inductive reactance is equal to the resistance R...

    Text Solution

    |