Home
Class 12
PHYSICS
In a moving coil galvanometer, the defle...

In a moving coil galvanometer, the deflection of the coil `theta` is related to the electrical current I by the relation

A

`i prop tan theta`

B

`i prop theta`

C

`i prop ( theta)^2`

D

`i prop (sqrt theta)`

Text Solution

Verified by Experts

The correct Answer is:
b
Due to linear scale, `iprop theta`.
Promotional Banner

Topper's Solved these Questions

  • MAGNETIC FIELD AND MAGNETIC FORCES

    CENGAGE PHYSICS ENGLISH|Exercise Exercises Multiple Correct|25 Videos

  • MAGNETIC FIELD AND MAGNETIC FORCES

    CENGAGE PHYSICS ENGLISH|Exercise Exercises Assertion -reasoning|8 Videos

  • MAGNETIC FIELD AND MAGNETIC FORCES

    CENGAGE PHYSICS ENGLISH|Exercise Exercises Subjective|10 Videos

  • INDUCTANCE

    CENGAGE PHYSICS ENGLISH|Exercise Concept Based|8 Videos

  • MISCELLANEOUS VOLUME 3

    CENGAGE PHYSICS ENGLISH|Exercise True and False|3 Videos

Similar Questions

Explore conceptually related problems

In a moving coil galvanometer, the deflection of the coil q is related to the electrical current i by the relation

In a moving coil galvanometer is based on the

In a moving coil galvanometer the deflection (phi) on the scale by a pointer attached to the spring is

In a hot wire ammeter the deflection angle theta of the pointer is related with the current I as

If in a moving coil galvanometer, a current I produces a deflection theta , then

In a moving coil galvanometer, torque on the coil can be experessed as tau = ki , where i is current through the wire and k is constant . The rectangular coil of the galvanometer having number of turns N , area A and moment of interia I is placed in magnetic field B . Find (a) k in terms of given parameters N,I,A andB (b) the torsion constant of the spring , if a current i_(0) produces a deflection of (pi)//(2) in the coil . (c) the maximum angle through which the coil is deflected, if charge Q is passed through the coil almost instaneously. ( ignore the daming in mechinal oscillations).

In a moving coil galvanometer, torque on the coil can be experessed as tau = ki , where i is current through the wire and k is constant . The rectangular coil of the galvanometer having number of turns N , area A and moment of interia I is placed in magnetic field B . Find (a) k in terms of given parameters N,I,A andB (b) the torsion constant of the spring , if a current i_(0) produces a deflection of (pi)//(2) in the coil . (c) the maximum angle through which the coil is deflected, if charge Q is passed through the coil almost instaneously. ( ignore the daming in mechinal oscillations).

In a moving coil galvanometer, what is meant by a radial magnetic field ?

In a moving coil galvanometer, we use a radial magnetic field so that the galvanometer scale is

A moving coil galvanometer has N numbr of turns in a coil of effective area A , it carries a current I . The magnetic field B is radial. The torque acting on the coil is

CENGAGE PHYSICS ENGLISH-MAGNETIC FIELD AND MAGNETIC FORCES-Exercises Single Correct
  1. A uniform magnetic field exist in a region which forms an equilateral ...

    Text Solution

    |

  2. A particle of positive charge q and mass m enters with velocity Vhatj ...

    Text Solution

    |

  3. In the plane mirror, the coordinates of image of a charged particle (i...

    Text Solution

    |

  4. A uniform magnetic field of 1.5T exists in a cylinderical region of ra...

    Text Solution

    |

  5. An insulating rod of length I carries a charge q distrubuted uniformly...

    Text Solution

    |

  6. Two straight segments of wire ab and bc each carrying current I, are p...

    Text Solution

    |

  7. A current carrying loop is placed in the non-uniform magnetic field wh...

    Text Solution

    |

  8. A current carrying loop lies on a smooth horizontal plane. Then,

    Text Solution

    |

  9. A semicircular wire of radius R, carrying current I, is placed in a ma...

    Text Solution

    |

  10. A wire of cross-sectional area A forms three sides of a square and is ...

    Text Solution

    |

  11. A proton of mass 1.67xx10^(-27) kg charge 1.6xx10^(-19) C is projected...

    Text Solution

    |

  12. A beam of mixture of alpha particle and protons are accelerted through...

    Text Solution

    |

  13. An electron is projected at an angle theta with a uniform magnetic fie...

    Text Solution

    |

  14. A charged particle moves in a uniform magnetic field perpendicular to ...

    Text Solution

    |

  15. A particle of specific charge alpha is projected from origin with velo...

    Text Solution

    |

  16. A straight peice of conducting wire with mass M and length L is placed...

    Text Solution

    |

  17. In a moving coil galvanometer is based on the

    Text Solution

    |

  18. In a moving coil galvanometer, we use a radial magnetic field so that ...

    Text Solution

    |

  19. The current that must flow through the coil of a galvanometre so as to...

    Text Solution

    |

  20. In a moving coil galvanometer, the deflection of the coil theta is rel...

    Text Solution

    |