Home
Class 12
PHYSICS
A galvanometer of resistance 50Omega is ...

A galvanometer of resistance `50Omega` is connected to a b attery of 3V alongwith a resistance of `2950Omega` in series. A full scale deflection of 30 division is obtained in the galvanometer in order to reduce this deflection to 20 division. The resistance in sereis. should be:-

A

4450 `Omega`

B

5050 `Omega`

C

5550 `Omega`

D

6050 `Omega`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    TARGET PUBLICATION|Exercise COMPETITIVE THINKING|111 Videos
  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    TARGET PUBLICATION|Exercise EVALUATION TEST|19 Videos
  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    TARGET PUBLICATION|Exercise EVALUATION TEST|19 Videos
  • KINETIC THEORY OF GASES AND RADIATION

    TARGET PUBLICATION|Exercise Evaluation test|18 Videos
  • MAGNETISM

    TARGET PUBLICATION|Exercise EVALUATION TEST|14 Videos

Similar Questions

Explore conceptually related problems

A galvanometer of resistance 50 Omega is connected to a battery of 8 V along with a resistance of 3950 Omega in series. A full scale deflection of 30 divisions is obtained in the galvanometer. In order to reduce this deflection to 15 divisions, the resistance in series should be .... Omega .

A galvanometer of resistance 50 Omega is connected to a battery of 3 V along with resistance of 2950 Omega in series. A full scale deflection of 30 divisions is obtained in the galvanometer. In order to reduce this deflection to 20 division the above series resistance should be

A galvanometer of resistance 30 2 is connected to a battery of emf 2 V with 1970 Q resistance in series. A full scale deflection of 20 divisions is obtained in the galvanometer. To reduce the deflection to 10 divisions, the resistance in series required is

A galvanometer of resistance 25Omega is connected to a battery of 2V along with a resistance of 3000Omega . In this case, a full - scale deflection of 30 units is obtained in the galvanometer. In order or reduce this deflection to 10 units, how much more resistance ("in "Omega) should be added to the circuit in series?

A galvanometer of resistance 25Omega is connected to a battery of 2 volt along with a resistance in series. When the value of this resistance is 3000Omega , a full scale deflection of 30 units is obtained in the galvanometer. In order to reduce this deflection to 20 units, the resistance in series will be

A galvanometer having 20 division scale and 50Omega resistance is connected in series to a cell of e.m.f. 1*5V through a resistance of 100Omega , shows full scale deflection. The figure of merit of the galvanometer in microampere/division is

TARGET PUBLICATION-MAGNETIC EFFECT OF ELECTRIC CURRENT-CRITICAL THINKING
  1. A galvanometer gives full scale deflection when the current passed thr...

    Text Solution

    |

  2. A voltmeter of range 3V and resistance 200Omega cannot be converted to...

    Text Solution

    |

  3. A galvanometer of resistance 50Omega is connected to a b attery of 3V ...

    Text Solution

    |

  4. A galvanometer may be converted into an ammeter or a voltmeter. In whi...

    Text Solution

    |

  5. Voltmeters V(1) and V(2) are connected in series across a D.C. line V(...

    Text Solution

    |

  6. What is the relation between voltage sensitivity S(v) and the current ...

    Text Solution

    |

  7. The Senstivity of a galvanometer is 60"div"//Ampere. When a shunt is u...

    Text Solution

    |

  8. A moving coil galvanometer of resistance 5 Omega has voltage sensitivi...

    Text Solution

    |

  9. A galvanometer of resistance 95 Omega shunted by a resistance of 5 Ome...

    Text Solution

    |

  10. A moving coil galvanometer has 28 turns and area of coil is 4 xx 10^(-...

    Text Solution

    |

  11. The coil of galvanometer consists of 80 turns and effective area of 5 ...

    Text Solution

    |

  12. A galvanometer has a current sensitivity of 5 divisions per milliamper...

    Text Solution

    |

  13. If a shunt 1//10 of the coil resistance is applied to a moving coil ga...

    Text Solution

    |

  14. An alpha particle of positive charge +2e is compelled to rotate along ...

    Text Solution

    |

  15. A uniform magnetic field acts right angles to the direction of motion ...

    Text Solution

    |

  16. A cyclotron in which flux density is 1.4 T is employed to accelerate p...

    Text Solution

    |

  17. In a cyclotron, the time taken by ion to describe a semicircular path ...

    Text Solution

    |

  18. The maximum kinetic energy of protons in a cyclotron of radius 0.4 m i...

    Text Solution

    |

  19. The scale of galvanometer is divided into 150 equal divisions. The gal...

    Text Solution

    |

  20. The ratio of the magnetic field at the centre of a current carrying ci...

    Text Solution

    |