Home
Class 12
PHYSICS
In a moving coil galvanometer, a. why...

In a moving coil galvanometer,
a. why is horse-shoe magnet used?
b. why is phosphor bronze fibre used?
c. why is a soft iron cylinder used?

Text Solution

Verified by Experts

a. To produce a cylindrical field with radial lines
Promotional Banner

Topper's Solved these Questions

  • MOVING CHARGES AND MAGNETISM

    NEW JOYTHI PUBLICATION|Exercise CONTINUOUS EVALUATION|1 Videos
  • MOVING CHARGES AND MAGNETISM

    NEW JOYTHI PUBLICATION|Exercise CONTINUOUS EVALUATION (ASSIGNMENT)|4 Videos
  • MOVING CHARGES AND MAGNETISM

    NEW JOYTHI PUBLICATION|Exercise PRACTICE PROBLEMS FOR SELF ASSESSMENT|20 Videos
  • MAGNETISM AND MATTER

    NEW JOYTHI PUBLICATION|Exercise COMPETITIVE EXAM CORNER|13 Videos
  • NUCLEI

    NEW JOYTHI PUBLICATION|Exercise COMPETITIVE EXAM CORNER|23 Videos

Similar Questions

Explore conceptually related problems

Why is tungsten metal used in bulbs?

Why the Phoshor - bronze wire is used as the suspension wire in moving coil galvanometer ?

Why and where do we use freons ?

We use straw to suck soft drinks, why ?

Why robots are used in many places?

NEW JOYTHI PUBLICATION-MOVING CHARGES AND MAGNETISM-EVALUATION QUESTIONS AND ANSWERS
  1. What is the magnetic field along the axis and equatorial line of a bar...

    Text Solution

    |

  2. A current carrying circular loop lies on a smooth horizontal plane. Ca...

    Text Solution

    |

  3. A uniform magnetic field of 3000G is established along the positive z-...

    Text Solution

    |

  4. Describe qualitatively the path of a charged particle moving in a unif...

    Text Solution

    |

  5. A uniform magnetic field of 1.5 T exists in a cylindrical region of ra...

    Text Solution

    |

  6. A straight horizontal conducting rod of length 0.45 m and mass 60 g is...

    Text Solution

    |

  7. A current carrying loop of irregular shape is located in an external m...

    Text Solution

    |

  8. Starting from the expression for the force on a current carrying condu...

    Text Solution

    |

  9. a. What type of particles can be accelerated in a cyclotron? b. Why ...

    Text Solution

    |

  10. In a moving coil galvanometer, a. why is horse-shoe magnet used? ...

    Text Solution

    |

  11. Expression for voltage sensitivity is (theta)/(v) = (NAB)/(CR) a. Wh...

    Text Solution

    |

  12. A moving coil galvanometer can be converted into an ammeter. a. Is t...

    Text Solution

    |

  13. No net force acts on a rectangular loop carrying a steady current when...

    Text Solution

    |

  14. A student records the following data for the magnitudes (B) of the mag...

    Text Solution

    |

  15. What is the magnitude of the induced current in the circular loop KLMN...

    Text Solution

    |

  16. A short bar magnet placed with its axis at 30^@ to a uniform magnetic ...

    Text Solution

    |

  17. In the diagram shown is ciruclar loop carrying current I. show the dir...

    Text Solution

    |

  18. Two long parallel straight wires X and Y separated by a distance of 5 ...

    Text Solution

    |

  19. A galvanometer with a coil of resistance 120 ohm shows full-scale defl...

    Text Solution

    |

  20. Two wires of equal lengths are bent in the form of two loops. One of t...

    Text Solution

    |