Home
Class 12
PHYSICS
The circular coil of tangent galvanomete...

The circular coil of tangent galvanometer is set at right angles to the magnetic meridian. It is found that the coil has gone through `20^(@)` from its initial position. Calcualte the horizontal intensity of the earth's magnetic field. The coil has only two turns of mean radius 8cm.

Text Solution

Verified by Experts

The correct Answer is:
H = 14.3 `Am^(-1)`
Promotional Banner

Topper's Solved these Questions

  • MAGNETIC EFFECT OF CURRENT

    NN GHOSH|Exercise Exercises|25 Videos

  • MAGNETIC DIPOLE

    NN GHOSH|Exercise EXERCISES|10 Videos

  • MAGNETIC FIELD AND POTENTIAL

    NN GHOSH|Exercise EXERCISES B|1 Videos

Similar Questions

Explore conceptually related problems

In a tangent galvanometer, the magnetic induction produced by the coil of wire situated in the magnetic meridian is found to be equal to the horizontal component of the earth's magnetic field. The deflection produced in it will be

A circulalr coil carrying a current of 0.5 A is initially set in the magnetic meridian. It is turned till the magnetic needle pivoted at its center becomes parallel to the plane of the coil. If in the position the plane of the coil is 30^(@) away from the magnetic meridian, calcualte the horizontal component of the earth's magnetic field. (Radius of coil = 5cm and number of the turns = 50)

A circular coil of diameter 7cm has 24 turns of wire carrying current of 0.75A . The magnetic moment of the coil is

A compass needle free to turn in a horizontal plane is placed at the centre of a circular coil of 30turns and radius 12cm. The coil is in a vertical plane malting an angle of 45^(@) with the magnetic meridian when the current in the coil is 0.35A, the needle points west to east. Determine the horizontal component of earth's magnetic field at the location.

A tangent galvanometer has 66 turns and the diameter of its coil is 22cm. It gives a deflection of 45^@ for 0.10 A current. What is the value of the horizontal component of the earth's magnetic field?

A compass needle free to turn in a horizontal plane is placed at the centre of a circular coil of 30 turns and radius 12 cm. The coil is in a vertical plane making an angle of 45^@ with the magnetic meridian when the current in the coil is 0.35amp. , the needle points west to east. (a) Determine the horizontal component of earth's magnetic field at the location. (b) The current in the coil is reversed and the coil is rotated about its vertical axis by an angle of 90^@ in the anticlockwise sense looking from above. Predict the direction of the needle. Take the magnetic declination at the places to be zero.

A circular coil has 63 turns, each of radius 22cm. It is placed in the magnetic meridian. A current of 0.5A is passed through the coil. What is the deflectio of a compass needle placed at its center is 45^(@) . Calcualte the intensity of the earth's horizontal field.

The radius of tangent galvanometer coil is 16 cm. Find the number of turn in its coil if a current of 40 mA is required to produce a deflection of 30^(@) in it from magnetic meridian. Horizontal component of earth's magnetic field is 36 xx 10^(-6)T .

NN GHOSH-MAGNETIC EFFECT OF CURRENT-Exercises
  1. Calcualte the current in amperes through a circular loop of 40 turns a...

    Text Solution

    |

  2. A circular coil has 63 turns, each of radius 22cm. It is placed in the...

    Text Solution

    |

  3. A circular coil with 10 turns of mean radius 10 cm is placed in the ma...

    Text Solution

    |

  4. A current of 0.1A passes through a circular coil, 15 cm in diameter an...

    Text Solution

    |

  5. Calculate the magnetic field at the center of a regualr hexagon, 10 cm...

    Text Solution

    |

  6. Two long, straight parallel conductors each carrying 2A current in the...

    Text Solution

    |

  7. Calculate the magnetic field at the orthocenter of an equilateral tria...

    Text Solution

    |

  8. Calculate the magnetic field at the corner of a right angled triangle ...

    Text Solution

    |

  9. The circular coil of tangent galvanometer is set at right angles to th...

    Text Solution

    |

  10. A long thin wire is placed along the y-axis (just outside) of a frame ...

    Text Solution

    |

  11. A circular loop of radius 10 cm carries a current of 15A. At its cente...

    Text Solution

    |

  12. Two long straight conductors carrying current I are located at the cor...

    Text Solution

    |

  13. A thin disc of dielectric material, with a total charge +q distributed...

    Text Solution

    |

  14. A conductor of lengh l is placed in the east-west line on a table. Sud...

    Text Solution

    |

  15. A long wire is bent into the shape shown in the figure. Without cross-...

    Text Solution

    |

  16. Two long straight conductors are connected radially to two arbitary po...

    Text Solution

    |

  17. Calculate the force of attraction per unit length between two long str...

    Text Solution

    |

  18. A wire of c.s.S = 2.5 mm^(2) is bent to make the three sides of a squa...

    Text Solution

    |

  19. A current I flows along a thin-walled, long, half-cylinder of radius R...

    Text Solution

    |

  20. Find the magnetic induction at the point O of the following figures if...

    Text Solution

    |