Home
Class 12
PHYSICS
A loop of wire is placed in a magnetic f...

A loop of wire is placed in a magnetic field B = `0.5hatiT`. If the area of the loop is `vecA`=`(3hati+6hatj+5hatk)m^2`, then what isthe, angle between `vecA` and`vecB`.

Promotional Banner

Topper's Solved these Questions

  • Electromagnetic Induction

    CHETANA PUBLICATION|Exercise EXERCISE|109 Videos
  • Dual Nature of Radiation and Matter

    CHETANA PUBLICATION|Exercise EXERCISE|89 Videos
  • Electrostatics

    CHETANA PUBLICATION|Exercise Exercise|73 Videos

Similar Questions

Explore conceptually related problems

If vecA =5hati +6hatj+4hatk and vecB =2hati-2hatj+3hatk , determine the angle between vecA and vecB

A square wire loop with sides 0.5 m is placed with its plane perpendicular to the magnetic field.The resistance of the loop is 5 Omega .Find at what rate the magnetic induction should be changed so that a current of 0.1 A is induced in the loop.

A rectangular loop carrying a current i is placed in a uniform magnetic field B. The area enclosed by the loop is A. If there are n turns in the loop, the torque acting on the loop is given by

What is the value of linear velocity, if vecomega=3hati-4hatj+hatk and vecr=5hati-6hatj+6hatk ?

A conducting circular loop is placed in a uniform magnetic field B = 0.025 T with its place perpendicular to the loop. The radius of the loop is made to shrink at a constant rate of 1 mms^-1 . What is the induced e.m.f. when the radius is 2cm?

A straight wire of length 0.5 m carrying a current of 1.6 ampere is placed in a uniform magnetic field of induction 2 T. If the magnetic field is perendicular to the length of the wire, then force on the wire is

A conducting loop of area 1m^2 is placed normal to uniform magnetic field 3Wb//m^2 . If the magnetic field is uniformly reduced to 1 Wb// m^2 in a time of 0.5 s, calculate the induced emf produced in the loop.

A straight wire of length 0.5 metre and carrying a current of 1.2 ampere is placed in a uniform magnetic field of induction 2 tesla. If the magnetic field is perpendicular to the length of the wire , the force acting on the wire is

The unit vector parallel to the resultant of the vectors vecA=4hati+3hatj+6hatk and vecB=-hati+3hatj-8hatk is

If oversetrarrP= hati - 2hatj+ 3hatk and oversetrarrQ= 3hati + hatj+ 2hatk . Find the angle between oversetrarrP and oversetrarrQ

CHETANA PUBLICATION-Electromagnetic Induction-EXERCISE
  1. A loop of wire is placed in a magnetic field B = 0.5hatiT. If the area...

    Text Solution

    |

  2. A magnetic flux associated with a coil changes by 5xx10^-2 Wb in 25 se...

    Text Solution

    |

  3. The current in one coil increasesfrom0 to 500 mA in 0.1 ms. The induce...

    Text Solution

    |

  4. An emf of 100 mV is induced in a conductor of length 1.2m when it move...

    Text Solution

    |

  5. The current increases at the rate of 10A s^-1 in the coil of inductan...

    Text Solution

    |

  6. The current in a coil changes from zero to 5A in 0.2 seconds, due to w...

    Text Solution

    |

  7. The mutual inductance between the two coils is 2 xx 10^-2H.Due to the ...

    Text Solution

    |

  8. A step down transformer, connected to mains supply 240V is made to ope...

    Text Solution

    |

  9. The primary winding of a transformer has 300 turns and its secondary w...

    Text Solution

    |

  10. A coil of effective area 10m^2 is placed at right angles to a magnetic...

    Text Solution

    |

  11. The current increases at the rate of 10A s^-1 in the coil of inductan...

    Text Solution

    |

  12. A coil of effective area 4m^2 is placed at right angles to a magnetic ...

    Text Solution

    |

  13. A rectangular coil (0.5 m xx 0.4m) has a resistance of 5Omega . The co...

    Text Solution

    |

  14. A rectangular coil (0.5 m xx 0.4m) has a resistance of 5Omega . The co...

    Text Solution

    |

  15. A coil of area 0.75 m^2 and 1000 turns is kept perpendicular to a magn...

    Text Solution

    |

  16. Find the self-inductance of a circuit in which an e.m.f. of 10V is ind...

    Text Solution

    |

  17. The mutual inductance of a pair of coils is 0.75H. If the current in t...

    Text Solution

    |

  18. A step down transformer has 800 turns in the primary. The supply volta...

    Text Solution

    |

  19. A coil of effective area 2m^2 is placed at right angles to a magnetic ...

    Text Solution

    |

  20. The back e.m.f. induced in an inductive coil is 100 V when the current...

    Text Solution

    |

  21. The coefficient of mutual inductance between a pair of coils is 5mH. F...

    Text Solution

    |