Home
Class 12
PHYSICS
In the given potentiometer arrangemeter ...

In the given potentiometer arrangemeter the null point

A

can be obtained for any value of `V`

B

can be obtained only if `V lt V_0`

C

can be obtained only if `V gt V_0`

D

can never be obtained

Text Solution

Verified by Experts

The correct Answer is:
D
`V` and `V_0` are oppositely connected.
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    DC PANDEY|Exercise Level 2 More Than One Correct|10 Videos

  • CURRENT ELECTRICITY

    DC PANDEY|Exercise Level 2 Comprehension Example Type|2 Videos

  • CURRENT ELECTRICITY

    DC PANDEY|Exercise Level 1 Subjective|53 Videos

  • COMMUNICATION SYSTEM

    DC PANDEY|Exercise Subjective|11 Videos

  • ELECTROMAGNETIC INDUCTION

    DC PANDEY|Exercise Medical entrances gallery|25 Videos

Similar Questions

Explore conceptually related problems

At the null point____

In the potentiometer arrangement shown in figure null point is obtained l. match the following

In every experiment with potentiometer in the null point state, the potential difference between the ends of the galvanometer is

In a potentiometer experiment, the null point is obtained at 140 cm for a cell of e.m.f. 1.2 V. With another cell of unknown e.m.f., the null point is obtained at 210 cm. The unknown e.m.f. is

In an experiment with a potentiometer, the null point is obtained at a distance of 60 cm along the wire from the common terminal with a leclanche cell. When a shunt resistance of 1 Omega is connected across the cell, the null point shifts to a distance of 30 cm from the common terminal. what is the internal resistance of the cell?

A potentiometer having the potential gradient of 2 mV//cm is used to measure the difference of potential across a resistance of 10 ohm . If a length of 50 cm of the potentiometer wire is required to get null point, the current passing through the 10 ohm resistor is (in mA )

An accumulator of 4 V is connected through a resistance of 30Omega to a potentiometer wire 10 m long and resistance 30Omega . When a cell is connected through a galvanometer to the potentiometer the null point is found at 5.5 m from the common terminal. The potential gradient in the wire is

Calculate the value of unknown potential V for the given potentiometer circuit .The total length 400 cm of potentiometer wire has a resistance of 10 Omega and the balance point in obtained at a length of 240 cm

If the value of potential gradient on potentiometer wire is decreased, then the new null point will be obtained at

DC PANDEY-CURRENT ELECTRICITY-Level 2 Single Correct
  1. A, B and C are voltmeters of resistances R, 1.5R and 3R respectively. ...

    Text Solution

    |

  2. In the circuit shown the voltage drop across the 15Omega resistor is 3...

    Text Solution

    |

  3. In an experiment on the measurement of internal resistance of as cell ...

    Text Solution

    |

  4. A source of emf E=10 V and having negligible internal resistance is co...

    Text Solution

    |

  5. In order to increase the resistance of a given wire of unknown of unif...

    Text Solution

    |

  6. In a meter bridge, null point is 20 cm, when the known resistance R is...

    Text Solution

    |

  7. A milliammeter of range 10 mA and resistance 9 Omega is joined in a ci...

    Text Solution

    |

  8. A battery of emf E0=12V is connected across a 4 m long uniform wire ha...

    Text Solution

    |

  9. In the circuit shown, keys K1 and K2 both are closed the ammeter reads...

    Text Solution

    |

  10. In the circuit shown in figure , V must be

    Text Solution

    |

  11. In the circuit shown in figure ammeter and voltmeter are ideal. If E=4...

    Text Solution

    |

  12. A moving coil galvnometer is converted into an ammeter reading up to 0...

    Text Solution

    |

  13. The potential difference between points A and B is

    Text Solution

    |

  14. Two wires A and B made of same material and having their lengths in th...

    Text Solution

    |

  15. A galvanometer of resistance 50 Omega is connected to a battery of 3 ...

    Text Solution

    |

  16. Figure shows a potentiometer arrangement with R(AB)=10 Omega and rheos...

    Text Solution

    |

  17. In the given potentiometer arrangemeter the null point

    Text Solution

    |

  18. All resistance shown in the circuit are 2Omega each. The current in th...

    Text Solution

    |

  19. Iri the circuit shown in figure-3.334, the resistance of voltmeter is ...

    Text Solution

    |

  20. Figure shows three resistor configurations R1,R2 and R3 connected to 3...

    Text Solution

    |