Home
Class 12
PHYSICS
The balance point is obtained at 40 cm f...

The balance point is obtained at 40 cm from left end in meter bridge. Then the ratio of resistance in the gap is

A

`2:5`

B

`2:4`

C

`2:3`

D

`2:1`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • Current Electricity

    CHETANA PUBLICATION|Exercise Exercise|92 Videos

  • AC CIRCUITS

    CHETANA PUBLICATION|Exercise Exercise|122 Videos

  • Dual Nature of Radiation and Matter

    CHETANA PUBLICATION|Exercise EXERCISE|89 Videos

Similar Questions

Explore conceptually related problems

If the balancing point is obtained at 35^(th) cm on a metre bridge , then the ratio of resistances in the gaps is

With an unknown resistance X in the left gap and a resistance of 30 Omega in the right gap of meter bridge . The null point is obtained at 40 cm from the left end of the wire . Find i) the unknown resistance and ii)the shift in the position of the null point , when the resistance in each gap is shunted by a resistance of 8 Omega .

With an unknown resistance X in the left gap and a resistance of 30 Omega in the right gap of meter bridge . The null point is obtained at 40 cm from the left end of the wire . Find i) the unknown resistance and ii)the shift in the position of the null point , when the resistances in both the gaps are increased by 15 Omega .

At what point the null point be obtained in meterbridge experiment when the ratio of resistance in two gaps is 3:7 ?

In a potentiometer experiment, it is found that no current passes through the galvanometer when the terminals of the cell are connected across 52 cm of the potentiometer wire. If the cell is shunted by a resistance of 5 Omega the balance point is found at 40 cm of the wire from the same end. The internal resistance of the cell is

At which point will the null point be obtained on a metrebridge if the ratio of the resistances in the two gaps is 2:3 ?

Two unknown resistrance X and Y are connected to left and right gaps of a meter bridge and the balancing point is obtained at 80 cm from left. When a 10Ω resistance is connected in parallel to x, the balance point is 50 cm from left. The values of X and Y respectively are

In a meter-bridge experiment with a resistance R_(1) in left gap and a resistance X in a right gap. null point is obtained at 40 cm from the left emf. With a resistance R_(2) in the left gap, the null point is obtainned at 50 cm from left hand. Find the position of the left gap is containing R_(1) and R_(2) (i) in series and (ii) in parallel.

With a resistance R_1 in the left gap and a resistance R_2 in the right gap of a meterbridge, the null point is obtained at a distance of 70cm from the left end, when R_1 is reduced by 2Omega and R_2 is increased by 2Omega , the null point is obtained at 30cm from left end. Find the values of resistance R_1 and R_2 .

Two unknown resistances are connected in two gaps of a meter-bridge. The null point is obtained at 40 cm from left end. A 30Omega resistance is connected in series with the smaller of the two resistances, the null point shifts by 20 cm to the right end. The value of smaller resistance in Omega is

CHETANA PUBLICATION-Current Electricity-Exercise
  1. A voltmeter having a resistance of 50 Omega is connected across a cell...

    Text Solution

    |

  2. The length and cross-section of the wire of meter bridge are

    Text Solution

    |

  3. The balance point is obtained at 40 cm from left end in meter bridge. ...

    Text Solution

    |

  4. Kelvin's method of determination of resistance of galvanometer

    Text Solution

    |

  5. Accuracy of potentiometer can be easily increased by

    Text Solution

    |

  6. A potential difference 3V is applied across a potentiometer wire of le...

    Text Solution

    |

  7. A cell of internal resistance "r" is connected to an external resistan...

    Text Solution

    |

  8. A Wheatstone's bridge ABCD is balanced with a galvanometer between the...

    Text Solution

    |

  9. Kirchhoffs voltage law and current law are respectively in accordance ...

    Text Solution

    |

  10. A skeleton cube is made of 12 wires, each of resistance R. The resista...

    Text Solution

    |

  11. When unknown resistance is determined by meterbridge the error due to ...

    Text Solution

    |

  12. In potentiometer experiment, if l1 is the balancing length for emf of ...

    Text Solution

    |

  13. An ideal ammeter has

    Text Solution

    |

  14. Which of the following statement is true?

    Text Solution

    |

  15. In the following circuit the value of resistance R

    Text Solution

    |

  16. The deflection in moving coil galvanometer is reduced to half when it ...

    Text Solution

    |

  17. If galvanometer is shunted by (1/n)^ th resistance, then the the frac...

    Text Solution

    |

  18. An ideal voltmeter has

    Text Solution

    |

  19. The resistance of a galvanometer is G. If S is the resistance used to ...

    Text Solution

    |

  20. A moving coil galvanometer of resistance G gives full scale deflection...

    Text Solution

    |