Home
Class 12
PHYSICS
The resistance of a galvanometer coil is...

The resistance of a galvanometer coil is `100 Omega` . The value of current for full scale deflection in it is 1mA. What should be the value of series resistance to be used to convert it into a voltmeter of 12volt range

A

` 11.9K Omega`

B

` 12 K Omega `

C

` 12.1 K Omega`

D

none of the above

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • Electrical Instrument

    MOTION|Exercise EXERCISE -3|16 Videos

  • Electrical Instrument

    MOTION|Exercise EXERCISE -1|43 Videos

  • ELASTICITY AND THERMAL EXPANSION

    MOTION|Exercise Exercise - 4 (Level-II)|11 Videos

  • ELECTRO MAGNETIC INDUCTION

    MOTION|Exercise EXERCISE-4| Section B (Prevous Years Problems )|29 Videos

Similar Questions

Explore conceptually related problems

The resistance of galvanometer coil is 0.1 Komega . The current for full scale deflection is 100 mu A. The value of the resistance put in series to convert it into a voltmeter of range 0.1 volt is –

The resistance of a moving coil galvanometer is 20Omega . It requires 0.01A current for full scale deflection calculate the value of resistan ce required to convert it into a voltmeter of range 20 volt.

The resistance of the galvanometer is 25 Omega it gives a full scale deflection when a current of 10mA is passed through it. The value of resistance R used in series to convert it into voltmeter of range 100 volt is :–

A galvanometer coil has a resistance of 990Omega and it shows full scale deflection for a current of 10mA. Calculate the value of resistance required to convert it into an ammeter of range 1 A.

A galvanometer of resistance 30 Omega shows a full scale deflection for a current of 2 mA. Calculate the value of resistance required to convert it into a voltmeter of range 0-5 volt.

The resistance of a moving coil galvanometer is 20Omega . It requires 0.01 A current for full - scale deflection. The value of resistance to convert it into a voltmeter of the range 20 V will be

The resistance of a moving coil galvanometer is 20 Omega . If requires 0.01 ampere current for full scale deflection. The value of resistance to convert in into a voltmeter of range 20 volt will be

The full scale deflection current of a galvanometer of resistance 1Omega is 5 mA . How will you convert it into a voltmeter of range of V ?

A galvanometer of resistance 100Omega gives full scale deflection for the current of 0.1 A . The series resistance required to convert it into voltmeter of range 100 V is

MOTION-Electrical Instrument -EXERCISE -2
  1. The resistance of a galvanometer coil is 100 Omega . The value of curr...

    Text Solution

    |

  2. The deflection in a moving coil galvanometer is reduced to half, when ...

    Text Solution

    |

  3. To send 10% of the main current through a moving coil galvanometer of ...

    Text Solution

    |

  4. In the given potentiometer circuit length of the wire AB is 3 m and re...

    Text Solution

    |

  5. A potentiometer wire 10 m long has a resistance 40ohms. It is put in s...

    Text Solution

    |

  6. The length of a potentiometer wire required to balance the e.m.f of ce...

    Text Solution

    |

  7. In figure, AB is a potentiometer wire, length 10 m and resistance 2 Om...

    Text Solution

    |

  8. A potentiometer experiment is setup as shown in fig. If both the galva...

    Text Solution

    |

  9. A cell of emf (E) and internal resistance (r) is balanced across (l) l...

    Text Solution

    |

  10. In a potentiometer arrangement shown in fig. The balancing length for ...

    Text Solution

    |

  11. The resistivity of a potentiometer wire is 40xx10^(-8)Omega-m and its ...

    Text Solution

    |

  12. A battery of emf 26V and internal resistance 0.4 ohm is connected to ...

    Text Solution

    |

  13. A cell of two volt and 1.5 ohm internal resistance is connected to two...

    Text Solution

    |

  14. Three wires are connected in series having resistances 2 , 3 and 5 ohm...

    Text Solution

    |

  15. A ten meter long potentiometer wire is connected to accumulator of emf...

    Text Solution

    |

  16. In an experiment to measure the internal resistance of a cell by a pot...

    Text Solution

    |

  17. Statement I : Potentiometer is based on wheatstone bridge. Statem...

    Text Solution

    |

  18. Statement I : Material used in the construction of a standard resista...

    Text Solution

    |

  19. Statement -1 : A potentiometer of longer length is used for accurate m...

    Text Solution

    |

  20. Assertion : The e.m.f. of the drivercell in the potentiometer experime...

    Text Solution

    |