Home
Class 12
PHYSICS
The resistance of 10 metre long potentio...

The resistance of 10 metre long potentiometer wire is 1 ohm/meter . A cell of e.m.f. 2.2 volts and a high resistance box are connected in series to this wire. The value of resistance taken from resistance box for getting potential gradient of 2.2 millivolt/metre will be

A

`790 Omega`

B

`810 Omega`

C

`990 Omega`

D

`1000 Omega`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • COMMUNICATION SYSTEM

    DISHA|Exercise Physics|25 Videos

  • DUAL NATURE OF MATTER AND RADIATION

    DISHA|Exercise Physics|30 Videos

Similar Questions

Explore conceptually related problems

The resistance of a potentiometer wire is 10 Omega and its length is 10m. A resistance box and 2V accumulator are placed in series with it. The value of resistance in the resistance box, if it is desired to have potential drop of 1 microvolt/mm is

The resistance of a potentiometer wire 8 m long is 8 ohm. A high resistance box and a 2-volt accumulator are connected in series with it. What should be the value of the resistance in the box, if it is desired to have a potential drop of 1 micro volt per mm?

A cell of emf 2 volt and internal resistance 1.5 Omega is connected to the ends of 1 m long wire. The resistance of wire is 0.5 Omega/m . Find the value of potential gradient on the wire.

A cell of two volt and 1.5 ohm internal resistance is connected to two ends of a 100 metre wire. The resistance of wire is 0.005 ohm//m . The potential gradient of the wire is

A potentiometer wire of 10 m length and 20 ohm resistance is connected in series with a resistance R ohms and a battery of emf 2V, negligible internal resistance, potential gradient on the wire is 0.16 millivolt/centimetre then R is ohm….

A cell of emf 2 volt and internal resistance 1.5Omega is connected to the ends of 1 long wire. The resistance of wire is (0.5Omega)/(m) . Find the value of potential gradient on the wire.

A 10 m long wire of resistance 15 ohm is connectd in series with a battery of emf 2V (no internal resistance) and a resistance of 5 ohm. The potential gradient along the wire is

A potentiometer wire has a length of 10 m and resistance 4 Omega m^(-1) . An accumulator of emf 2 V and a resistance box are connected in series with it. Culculate the resistance to be introduced in the box so as to get a potential gradient of (a) 0.1 V//m and (b) 0.1 mVm^(-1) .

DISHA-CURRENT ELECTRICITY-Physics
  1. In the circuit shown in the figure, the current flowing in 2 Omega res...

    Text Solution

    |

  2. For the post office arrangement to determine the value of unknown resi...

    Text Solution

    |

  3. The e.m.f. of a standard cell balances across 150 cm length of a wire ...

    Text Solution

    |

  4. Five resistor are connected as shown in the diagram. The equivalent re...

    Text Solution

    |

  5. A potentiometer has uniform potential gradient. The specific resistanc...

    Text Solution

    |

  6. Resistance in the two gaps of a meter bridge are 10 ohm and 30 ohm res...

    Text Solution

    |

  7. A potentiometer has uniform potential gradient across it. Two cells c...

    Text Solution

    |

  8. In a potentiometer experiment two cells of e.m.f. E and E are used...

    Text Solution

    |

  9. The resistance of 10 metre long potentiometer wire is 1 ohm/meter . A ...

    Text Solution

    |

  10. In the shown arrangement of the experiment of the meter bridge if AC c...

    Text Solution

    |

  11. In meter brigde of Wheatstone bridge for measurment of resistance, the...

    Text Solution

    |

  12. Which of the following statements are correct ? (1) Voltmeter should...

    Text Solution

    |

  13. Which are coorect statement ? (1) The Wheatstone bridge is most sens...

    Text Solution

    |

  14. Figure shows a balanced Wheatstone's bridge (1) If P is slightly ...

    Text Solution

    |

  15. A battery is connected to a potentiometer and a balance point is obtai...

    Text Solution

    |

  16. A battery is connected to a potentiometer and a balance point is obtai...

    Text Solution

    |

  17. A battery is connected to a potentiometer and a balance point is obtai...

    Text Solution

    |

  18. Assertion : In metre bridge experiment, a high resistance is always co...

    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

    |