Home
Class 12
PHYSICS
A semicircular loop of radius R is rotat...

A semicircular loop of radius R is rotated with an angular velocity `omega` perpendicular to the plane of a magnetic field B as shown in the figure. Emf Induced in the loop is

A

`BomegaR^(2)`

B

`(1)/(2)BomegaR^(2)`

C

`(3)/(2)BomegaR^(2)`

D

`(1)/(4)BomegaR^(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT(SECTION - A) (OBJECTIVE TYPE QUESTIONS)|35 Videos

  • ELECTROMAGNETIC INDUCTION

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT(SECTION - B) (OBJECTIVE TYPE QUESTIONS)|25 Videos

  • ELECTROMAGNETIC INDUCTION

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (SECTION - J)|5 Videos

  • ELECTRIC CHARGES AND FIELDS

    AAKASH INSTITUTE ENGLISH|Exercise comprehension|3 Videos

  • ELECTROMAGNETIC WAVES

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION - D Assertion-Reason Type Questions|25 Videos

Similar Questions

Explore conceptually related problems

A square loop of side a is rotating about its diagonal with angular velocity omega in a perpendicular magnetic field vec(B) It has 10 turns. The emf induced is

A charge q is spread uniformly over an insulated loop of radius r. If it is rotated with an angular velocity omega with respect to normal axis then the magnetic moment of the loop is :

A semicircular conducting wire of radius a is moving perpendicular to a uniform magnetic field B with speed √2 v as shown in the figure.The emf induced across the wire Is

A conducting rod of length l is rotating with constant angular velocity omega about point O in a uniform magnetic field B as shown in the figure . What is the emf induced between ends P and Q ?

A circular loop of radius R is kept in a uniform magnetic field pointing perpendicular into the plane of paper. When a current l flows in the loop, the tension produced in the loop is

A metal disc of radius R rotates with an angular velcoity omega about an axis perpendiclar to its plane passing through its centre in a magnetic field B acting perpendicular to the plane of the disc. Calculate the induced emf between the rim and the axis of the disc.

a semicircle wire of radius R is rotated with constant angular velocity about an axis passing through one end and perpendicular to the plane of wire. There is a uniform magnetic field of strength B . The induced emf between the ends is

a semicircle wire of radius R is rotated with constant angular velocity about an axis passing through one end and perpendicular to the plane of wire. There is a uniform magnetic field of strength B . The induced emf between the ends is

A conducting square loop of side l and resistance R moves in its plane with a uniform velocity v perpendicular ot one of its sides. A uniform and constant magnetic field B exists along the perpendicualr ot the plane of the loop as shown in . The current induced in the loop is

A conducting circular loop of radius r is rotated about its diameter at a constant angular velocity omega in a magnetic field B perpendicular to the axis of rotation. In what position of the loop is the induced emf zero?

AAKASH INSTITUTE ENGLISH-ELECTROMAGNETIC INDUCTION-EXERCISE
  1. A vertical rod of length l is moved with constant velocity v towards e...

    Text Solution

    |

  2. The current carrying wire and the rod AB are in the same plane. The ro...

    Text Solution

    |

  3. A helicopter rises vertically upwards with a speed of 100 m//s. If the...

    Text Solution

    |

  4. A rod AB slides on a V shaped wire with speed v as shown, such that at...

    Text Solution

    |

  5. if given arrangement is moving towards left with speed v, then potenti...

    Text Solution

    |

  6. A conducting rod is rotated about one end in a plane perpendicular to ...

    Text Solution

    |

  7. A semicircular loop of radius R is rotated with an angular velocity om...

    Text Solution

    |

  8. A force of 10N is required to move a conducting loop through a non-uni...

    Text Solution

    |

  9. A flexible wire bent in the form of a circle is placed in a uniform ma...

    Text Solution

    |

  10. Radius ol a circular luop placed in a perpendicular uniform magnetic f...

    Text Solution

    |

  11. A wire of fixed length is wound on a solenoid of length 'l' and radius...

    Text Solution

    |

  12. The length of thin wire required to manufacture a solenoid of inductan...

    Text Solution

    |

  13. A conducting ring of radius b is placed coaxially in a long solenoid o...

    Text Solution

    |

  14. In what form is the energy stored in an inductor or A coil of inducta...

    Text Solution

    |

  15. Which of the following pairs of coils has zero coupling constant?

    Text Solution

    |

  16. Two coils of self-inductance 2 mH and 8 mH are placed, so close togeth...

    Text Solution

    |

  17. The equivalent inductance of two inductors is 2.4 H when connected in ...

    Text Solution

    |

  18. In an A.C. sub-circuit as shown in figure, the resistance R = 0.2 Omeg...

    Text Solution

    |

  19. A coil of self inductance 50 henry is joined t the terminals of a batt...

    Text Solution

    |

  20. The ratio of initial to final current through the battery when the swi...

    Text Solution

    |