Home
Class 12
PHYSICS
A standerd cell emf 1.08 V is balance by...

A standerd cell emf `1.08 V `is balance by the potential difference across `91 cm` of a meter long wire applied by a cell of emf `2 V` through a series resistor of resistance `2 Omega`. The internal resistance of the cell is zero. Find the resistance per unit length of the potentiometer wire.

Text Solution

Verified by Experts

The correct Answer is:
3
Promotional Banner

Topper's Solved these Questions

  • NTA JEE MOCK TEST 58

    NTA MOCK TESTS|Exercise PHYSICS|25 Videos

  • NTA JEE MOCK TEST 60

    NTA MOCK TESTS|Exercise PHYSICS|25 Videos

Similar Questions

Explore conceptually related problems

A 4 m long wire of resistance 8Omega is connected in series with a battery of emf 2V and a resistor of 7Omega . The internal resistance of the battery is 1Omega . What is the potential gradient along the wire ?

The wire of potentiometer has resistance 4 Omega and length 1m. It is connected to a cell of e.m.f. 2V and internal resistance 1 Omega . The current flowing through the potentiometer wire is

For a cell of e.m.f. 2 V , a balance is obtained for 50 cm of the potentiometer wire. If the cell is shunted by a 2Omega resistor and the balance is obtained across 40 cm of the wire, then the internal resistance of the cell is

NTA MOCK TESTS-NTA JEE MOCK TEST 59-PHYSICS
  1. During an adiabatic process, the pressure of a gas is found to be prop...

    Text Solution

    |

  2. Two point masses, m each carrying charges -q and +q are attached to th...

    Text Solution

    |

  3. With what minimum speed must a particle be projected from origin so th...

    Text Solution

    |

  4. A conveyor belt is moving at a constant speed of 2m//s . A box is gent...

    Text Solution

    |

  5. The equation of the resultant motion of the number of simple harmonic ...

    Text Solution

    |

  6. When light of wavelength lambda is incident on photosensitive surface,...

    Text Solution

    |

  7. A wire of cross section A is stretched horizontally between two clamps...

    Text Solution

    |

  8. A ray of light is incident normally on one of the faces of a prism of ...

    Text Solution

    |

  9. Average torque on a projectile of mass m (initial speed u and angle of...

    Text Solution

    |

  10. In the following common emitter configuration an NPN transistor with c...

    Text Solution

    |

  11. A metal ball of surface area 200 cm^(2) and temperature 527^(@)C is ...

    Text Solution

    |

  12. The physical quantity which has the dimensional formula [M^(1)T^(–3)] ...

    Text Solution

    |

  13. Consider the optical system shown in figure. The point source of ligth...

    Text Solution

    |

  14. An iron load of 2Kg is suspended in the air from the free end of a son...

    Text Solution

    |

  15. As shown in the figure, a chain of mass m is placed on a smooth quarte...

    Text Solution

    |

  16. A standerd cell emf 1.08 V is balance by the potential difference acro...

    Text Solution

    |

  17. All the edges of a block with parallel faces are unequal. Its longest ...

    Text Solution

    |

  18. A projectile of mass m is fired from the surface of the earth at an an...

    Text Solution

    |

  19. Three rods AB, BC and BD of same length l and cross section A are arra...

    Text Solution

    |

  20. The binding energy per nucleon of O^16 is 7.97 MeV and that of O^17 is...

    Text Solution

    |