Home
Class 12
PHYSICS
A resistance wire connected in the left ...

A resistance wire connected in the left gap of a metre bridge balances a 10Ω resistance in the right gap at a point which divides the bridge wire in the ratio 3:2. If the length of the resistance wire is 1.5m, then find the length of 1Ω of the resistance wire.

Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    BINA LIBRARY|Exercise EXERCISE|107 Videos
  • COMMUNICATION SYSTEM

    BINA LIBRARY|Exercise EXERCISE |64 Videos
  • DUAL NATURE OF MATTER AND RADIATION

    BINA LIBRARY|Exercise EXERCISE|68 Videos

Similar Questions

Explore conceptually related problems

Is it necessary to keep the length of a metre bridge wire one metre?

In a metre bridge, the balancing length from the left end is 20 cm. The resistance in the right gap is 1 Omega . The value of the unknown resistance is

In a meterbridge length of the wire is 100cm. At what point balance point be obtained if the resistance are in the ratio 4:5.

If the length of a wire is doubled and cross-sectional area is halved, what happens to the resistance?

The resistance in two gaps of a meter bridge are 10 Omega and 30 Omega respectively. If the resistances are interchanged the balance point shifts by

Specific resistance of the material of a wire is 44 x 10^6 Omega cm. If the resistance of the wire is 14 Omega and its diameter 1 mm, calculate the length of the wire.

A wire of one ohm resistance is stretched to three times its original length. Calculate the new resistance if the new radius is one-third the original radius.

The resistance of a 10m long wire is 10 Omega . Its length is increased by 25% by stretching. The resistance of the wire is now

BINA LIBRARY-CURRENT ELECTRICITY-EXERCISE
  1. battery gives a current of 0.5A with an external resistor of 12 Omega ...

    Text Solution

    |

  2. A cell can be balanced against 110 cm and 100 cm of potentiometer wire...

    Text Solution

    |

  3. A resistance wire connected in the left gap of a metre bridge balances...

    Text Solution

    |

  4. In a potentiometer arrangement, a cell of emf 1.25 V gives a balance p...

    Text Solution

    |

  5. With a certain cell, the balance point is obtained at 65 cm from the e...

    Text Solution

    |

  6. Two wires of same metal have same length, but their cross sections are...

    Text Solution

    |

  7. A wire of resistance R is cut into n equal parts. These parts are conn...

    Text Solution

    |

  8. The resistance of a 10m long wire is 10 Omega. Its length is increased...

    Text Solution

    |

  9. If there is an increase in length by 0.1% due to stretching the percen...

    Text Solution

    |

  10. How many electrons constitute current of one ampere?

    Text Solution

    |

  11. A car battery has emf 12V and internal resistance 5 x 10^-2 Omega. it ...

    Text Solution

    |

  12. The internal resistance of a cell of emf 2V is 0.1Omega. It is connect...

    Text Solution

    |

  13. The resistance in two gaps of a meter bridge are 10 Omega and 30 Omega...

    Text Solution

    |

  14. What is a potentiometer? Why is it most accurate device in measuring e...

    Text Solution

    |

  15. In a potentiometer experiment the balancing length with a cell is 560 ...

    Text Solution

    |

  16. Two resistances are joined in parallel whose resultant is 6/5 ohms. On...

    Text Solution

    |

  17. The smallest resistance obtained by connecting 50 resistance of 1/4 oh...

    Text Solution

    |

  18. How many different combinations of three equal resistors can be made ?

    Text Solution

    |

  19. A steady current flows in a metallic conductor of non uniform cross-se...

    Text Solution

    |

  20. A metallic wire of resistance 40 Omega is stretched to twice its lengt...

    Text Solution

    |