Home
Class 12
PHYSICS
A conducting circular loop is in a perpe...

A conducting circular loop is in a perpendicular magnetic field of induction `10^(-2)`T If the radius of the loop starts shrinking at a uniform rate of 1 `"mm"//s`, then the e.m.f. induced in the loop at the instant when its radius is 10 cm will be

A

1 `mu` V

B

2 `mu` V

C

`pi mu` V

D

`2pi mu` V

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    AAKASH SERIES|Exercise EXERCISE - I (MAGNETIC FLUX, FARADAY.S LAW, LENZ.S LAW, AC GENERATOR)|26 Videos
  • ELECTROMAGNETIC INDUCTION

    AAKASH SERIES|Exercise EXERCISE - I (SELF AND MUTUAL INDUCTION)|16 Videos
  • ELECTROMAGNETIC INDUCTION

    AAKASH SERIES|Exercise EXERCISE-II|32 Videos
  • ELECTRIC FIELD AND POTENTIAL

    AAKASH SERIES|Exercise PROBLEMS (LEVEL-II)|26 Videos
  • ELECTROMAGNETIC WAVES

    AAKASH SERIES|Exercise EXERCISE -II|22 Videos

Similar Questions

Explore conceptually related problems

A conducing circular loop is placed in a uniform magnetic field of indution B tesla with its plane normal to the field. Now, radius of the loop starts shrinking at the rate (dr//dt) . Then the induced e.m.f. at the instant when the radius is r is:

A conducting square loop is placed in a magnetic field B with its plane perpendicular to the field. Now the sides of the loop start shrinking at a constant rate alpha. the induced emf in the loop at an instant when its side is a is

A conducting circular loop is placed is a uniform magnetic field B =0.20 T with its plane perpendicular to the field . Somehow, the radius of the loop starts shrinking at a constant rate of 1.0 mm s^(-1) . Find the induced emf in the loop at an instant when the radius is 2 cm.

A conducting circular loop is placed in a uniform magnetic field 0.04T with its plane perpendicular to the magnetic field. The radius of the loop starts shrinking at 2mm//sec . The induced emf in the loop when the radius is 2cm is: (1.) 3.2 π μ V (2.) 4.8 π μ V (3.) 0.8 π μ V (4.) 1.6 π μ V

A conducting circular loop is placed in a uniform magnetic field, B=0.025T with its plane perpendicular to the loop. The radius of the loop is made to shrink at a constant rate of 1 mms^(-1) . The induced emf when the radius is 2 cm is

Radius ol a circular luop placed in a perpendicular uniform magnetic field is increasing at a constant rate of r_(o)ms^(1) . If at any instant radius of the loop is r, then emf induced in the loop at that instant will be

A conducting circualr loop is placed in a unifrom magentic field , B= 0.025 T with its plane perpendicular to the loop .The radius of the loop is made to shrink at a constant rate of 1 mms^(-1) .The induced emf when the radius is 2cm ,is

A semi circular current loop is placed in an uniform magnetic field of 1 tesla as shown. If the radius of loop is 1 m, the magnetic force on the loop is

A circular loop is placed in magnetic field B=2t. Find the direction of induced current produced in the loop.

A rectangular copper coil is placed in a uniform magnetic field of induction 40 mT with its plane perpendicular to the field. The area of the coil is shrinking at a constant rate of 0.5m^(2)s^(-1) . The emf induced in the coil is

AAKASH SERIES-ELECTROMAGNETIC INDUCTION-EXERCISE-III
  1. A square loop of side .a. lying in a perpendicular magnetic field to i...

    Text Solution

    |

  2. A very small circular loop of area 5xx10^(-4) m^(2) resistance 2 ohm a...

    Text Solution

    |

  3. A conducting circular loop is in a perpendicular magnetic field of ind...

    Text Solution

    |

  4. A square coil of side 0.5 m has movable sides. It is placed such that ...

    Text Solution

    |

  5. A wire of length .2l. is bent at midpoint so that angle between the tw...

    Text Solution

    |

  6. A vertically ring of radius r and resistance R falls vertically. It is...

    Text Solution

    |

  7. A horizontal wire is freee to slide on the vertical rails of a conduct...

    Text Solution

    |

  8. A metal rod of resistance R is fixed along a diameter of a conducting ...

    Text Solution

    |

  9. An annular disc of copper with inner and outer radii r and R is rotati...

    Text Solution

    |

  10. A rectangular loop with a sliding connector of length l=10m is the si...

    Text Solution

    |

  11. A squre loop of side a is placed in the same plane as a long stainght ...

    Text Solution

    |

  12. A square metal wire loop of side 20 cm and resistance 2Omega is moved ...

    Text Solution

    |

  13. IN a retangle ABCD (BC = 2AB). The moment of inertia along which aix...

    Text Solution

    |

  14. A rectangulare loop of length l and breadth b is placed at distance of...

    Text Solution

    |

  15. A conducting square frame of side .a. and a long straight wire carryin...

    Text Solution

    |

  16. If current is decreasing at a rate of 1000 As^(-1) p.d. between A and ...

    Text Solution

    |

  17. A coil is wound on a rectangular frame. Keeping the number of turns pe...

    Text Solution

    |

  18. When the current in the portion of the circuit shown in the figure is...

    Text Solution

    |

  19. A small square loop of wire of side l is placed inside a large square ...

    Text Solution

    |

  20. The coefficient of mutual induction between two coils is 4H. If the cu...

    Text Solution

    |