Home
Class 12
PHYSICS
A rectangular toroid has 1000 turns. The...

A rectangular toroid has 1000 turns. The ratio of the outer to inner diameter is 1.6 and its height is 5.0 cm. Find the flux through this toroid, if current passing through it is 1.7 A.

A

`8 muWb`

B

`6 muWb`

C

`8 Wb`

D

`6Wb`

Text Solution

Verified by Experts

The correct Answer is:
A
`B=(mu_(0)NI)/(2pir)`
Now magnetic flux in a strip of thickness dr and heigth h is gives as
`dphi=Bdr.h=(mu_(0)NIhdr)/(2pir)`
So, `phi=int_(r_(1))^(r_(2))(mu_(0)NIhdr)/(2pir)=(mu_(0)NIh)/(2pi) (log) r_(2)/r_(1)=8mu Wb`
Promotional Banner

Topper's Solved these Questions

  • MAGNETISM AND MATTER

    A2Z|Exercise AIIMS Questions|23 Videos

  • GEOMETRICAL OPTICS

    A2Z|Exercise Section D - Chapter End Test|30 Videos

  • MOCK TEST

    A2Z|Exercise Mock Test 3|44 Videos

Similar Questions

Explore conceptually related problems

The diameter of a cylinder is 28cm and its height is 20cm. Find the volume of the cylinder in litres (pi=(22)/(7):1000cm^(2)=1litre)

A toroid of total 1000 turns is made by using a tore of average radius 25cm. What is the magnetic induction inside the tore if a current of2A is passed through it and the relative magnetic permeability of the tore material is mu = 100

A toroid of 4000 turns has outer radius of 26 cm and inner radius of 25 cm. If the current in the wire is 10 A. Calculate the magnetic field of the toroid.

A rectangular coil of 100 turns has length 5 cm and width 4 cm. it is placed with its plane parallel to a uniform magnetic field and a current of 2 A is sent through the coil. Find the magnitude of the magnetic field B, if the torque acting on the coil is 0.2 Nm^(-1).

A toroidal coil has 3000 turns. The inner and outer radii are 10 cm and 12 cm respectively. If current flowing is 5 A, then the magnetic field inside the toroid will be

Figure-4.78 shows a toroidal solenoid whose cross-section is rectangular in shape. Find the magnetic flux through this cross-section if the current through the toroidal winding is I, total number of turns in winding is N, the inside and outside radii of the toroid are a and b respectively and the height of toroid is equal to h.

A toroid has a core of inner radius 20cm and outer radius 22cm around which 4200 turns of a wire are wound. If the current in the wire is 10A , what is the magnetic field (a) inside the core of toroid (b) outside the toroid (c) in the empty space surrounded by toroid?

A toroid having 200 turns carries a current of 1A. The average radius of the toroid is 10 cm. the magnetic field at any point in the open space inside the toroid is

A rectangular coil has 100 turns has length 5 cm and breadth 2 cm. It is suspended in radial magnetic field of induction 0.1 Wb//m^(2) . If a current of 100 muA is passed through the coil, then the torque acting on the coil is

A coil having N turns is wound tightly in the form of a spiral with inner and outer radii 'a' and 'b' respectively. Find the magnetic field at centre, when a current I passes through coil:

A2Z-MAGNETISM AND MATTER-Section D - Chapter End Test
  1. A magnet is suspended horizontal in the earth's magnetic field. When i...

    Text Solution

    |

  2. The field due to a magnet at a distance R~ from the centre of the magn...

    Text Solution

    |

  3. A long magnet is cut in two parts in such a way that the ratio of thei...

    Text Solution

    |

  4. If the magnetic flux is expressed in weber, then magnetiv induction ca...

    Text Solution

    |

  5. Magnetic intensity for an axial point due to a short bar magnet of mag...

    Text Solution

    |

  6. A small rod of bismuth is suspended freely between the poles of a stro...

    Text Solution

    |

  7. Magnetic moment of two bar magnets may be compared with the help of

    Text Solution

    |

  8. At place, the magnitudes of the horizontal component and total intensi...

    Text Solution

    |

  9. The angle of dip at a certain place is 30^(@). If the horizontal compo...

    Text Solution

    |

  10. The horizontal component of the earth's magnetic field is 0.22 Gauss a...

    Text Solution

    |

  11. Earth's magnetic field always has a horizontal component expert at or ...

    Text Solution

    |

  12. The magnet of a vibration magnetometer is heated so as to reduce its m...

    Text Solution

    |

  13. A magnet is suspended in such a way that it oscillates in the horizont...

    Text Solution

    |

  14. The plane of dip circle is set in the geographic meridian and the appa...

    Text Solution

    |

  15. At 45^(@) to the magnetic meridian the apparent dip is 60^(@). The tru...

    Text Solution

    |

  16. Two short magnets of magnetic moment 2 Am^(2) and 5 Am^(2) are placed ...

    Text Solution

    |

  17. A rectangular toroid has 1000 turns. The ratio of the outer to inner d...

    Text Solution

    |

  18. Assertion: The poles of magnet cannot be separated by breaking into tw...

    Text Solution

    |

  19. Assertion: Electromagnets are made of soft iron. Reason: Coercivity ...

    Text Solution

    |

  20. Assertion: To protect any instrument from external magnetic field, it ...

    Text Solution

    |