Home
Class 12
PHYSICS
A coil is placed in a constant magnetic ...

A coil is placed in a constant magnetic field. The magnetic field is parallel to the plane of the coil as shown in Fig. 3.28. Find the emf induced in the coil if `B` increasing.

Text Solution

Verified by Experts

`phi=0`(always) since area is perpendicular to magnetic field.
`therefore` emf=0
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    RESONANCE|Exercise Problem|12 Videos

  • ELECTROMAGNETIC INDUCTION

    RESONANCE|Exercise Exercis-1|63 Videos

  • ELECTRODYNAMICS

    RESONANCE|Exercise Advanced level problems|31 Videos

  • ELECTROSTATICS

    RESONANCE|Exercise HLP|39 Videos

Similar Questions

Explore conceptually related problems

A rectangular coil is placed in a region having a uniform magnetic field B perpendicular to the plane of the coil. An emf will not be induced ion the coil if the

Find the emf induced in the coil shown in figure. The magnetic field is perpendicular to the plane of the coil and is constant.

Find the emf induced in the coil shown in figure.The magnetic field is perpendicular to the plane of the coil and is constant.

A circular coil of radius r is placed in a uniform magnetic field B. The magnetic field is normal to the plane of the coil is rotated at an angular speed of omega , about its own axis , then the induced emf in the coil is __

A flexible wire bent in the form of a circle is placed in a uniform magnetic field perpendicular to the plane of the coil. The radius of the coil changing as shown in figure. The graph of induced emf in the coil is represented by

A circular coil carrying current is placed in a region of uniform magnetic field acting perpendicular to the plane of the coil as shown in figure. The correct choice among the following is

A flat coil, in the shape of a spiral, has a large number of turns N. The turns are wound tightly and the inner and outer radii of the coil are a and b respectively. A uniform external magnetic field (B) is applied perpendicular to the plane of the coil. Find the emf induced in the coil when the field is made to change at a rate (dB)/(dt) .

In the net work shown in figure,find the magnetic field at the centre O of the coil.

RESONANCE-ELECTROMAGNETIC INDUCTION-A.l.P
  1. A coil is placed in a constant magnetic field. The magnetic field is p...

    Text Solution

    |

  2. A long thin wire carrying a varying current I = i(0) sin omegat lies a...

    Text Solution

    |

  3. In the figure shown a conducting rod of length l, resistnace R and mas...

    Text Solution

    |

  4. Figure shows a conducting rod of length l = 10 cm, resistance R and ma...

    Text Solution

    |

  5. In the figure, a conducting rod of length l=1 meter and mass m = 1 kg ...

    Text Solution

    |

  6. A conducting frame abcd is kept in a vertical plane. A conducting rod ...

    Text Solution

    |

  7. L is a smooth conducting loop of radius l=1.0 m & fixed in a horizonta...

    Text Solution

    |

  8. Two capacitors of capacitances 2C and C are connected in series with a...

    Text Solution

    |

  9. In the figure shown PQRS is a fixed resistanceless conducting frame in...

    Text Solution

    |

  10. A horizontal rod AB of length 1 is rotated with constant angular veloc...

    Text Solution

    |

  11. In the figure shown a long conductor carries constant current I. A rod...

    Text Solution

    |

  12. An infinitesimal bar magnet of dipole moment M is pointing and moving ...

    Text Solution

    |

  13. , ABCEFGA is a square conducting frame of side 2 m and resistance 1 Om...

    Text Solution

    |

  14. A squre loop of side a= 12 cm with its sides parallel to x, and y-axis...

    Text Solution

    |

  15. In the circuit shown, the switch S is shifted to position 2 from posit...

    Text Solution

    |

  16. A square loop ABCD of side l is moving the xy plane with velocity vecv...

    Text Solution

    |

  17. The wire loop shown in the figure lies in uniform magnetic induction B...

    Text Solution

    |

  18. An N turn metallic ring of radius a, resistance R, and inductance L is...

    Text Solution

    |

  19. A thin wire ring of radius a and resitance r is located inside a lon...

    Text Solution

    |

  20. A long cylinder of radius a carrying a uniform surface charge rot...

    Text Solution

    |