Home
Class 12
PHYSICS
Which of the following can cause the nul...

Which of the following can cause the null point of a potentiometer to shift beyond the wire ?

A

e.m.f. of driving cell is low

B

e.m.f. of accumulator is high

C

length of wire is small

D

length of wire is large

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    NIKITA PUBLICATION|Exercise Multiple Choice Questions|314 Videos

  • COMMUNICATION SYSTEMS

    NIKITA PUBLICATION|Exercise Multiple Choice Questions (Examples for Practice)|8 Videos

  • ELASTICITY

    NIKITA PUBLICATION|Exercise MCQ|314 Videos

Similar Questions

Explore conceptually related problems

Which of the following is a null set ?

Which of the following is a null set?

In which of the following system, doubling the volume of the container causes a shift to the right

In an experiment with a potentiometer, V_(B)=10V . R is adjusted to the 50Omega (figure). A student wanting to measure voltage E_(1) to a battery (approx. 8V) finds no null point possible. He then diminishes R to 10Omega and is able to locate the null point ont he last (4th) segment of the potentiometer. find the resistance of the potentiometer wire and potential drop per unit length across the wire in the second case.

which of the following will cause a left shift in oxyhaemoglobin dissociation curve?

Which one of the following options is likely to cause an inward shift in a country's PPC?

Addition of water to which of the following equilibria causes it to shift in the backward direction?

NIKITA PUBLICATION-CURRENT ELECTRICITY-Multiple Choice Questions
  1. In comparing e.m.f. of two cells by a potentiometer balance point is o...

    Text Solution

    |

  2. The sensitivity of the potentiometer can be increased by

    Text Solution

    |

  3. Which of the following can cause the null point of a potentiometer to ...

    Text Solution

    |

  4. When null point is obtained in the potentiometer the current is draw...

    Text Solution

    |

  5. Potentiometer was first invented by

    Text Solution

    |

  6. In the construction of potentiometer, the length of wire used is

    Text Solution

    |

  7. A potentiometer is more sensitive when

    Text Solution

    |

  8. Instead of voltmeter, potentiometer is always used to measure e.m.f. ...

    Text Solution

    |

  9. The potentiometer wire of resistance R is connected in series with a c...

    Text Solution

    |

  10. Potentiometer is used to

    Text Solution

    |

  11. The internal resistance of a cell by potentiometer is given by

    Text Solution

    |

  12. In potentiometer experiment to determine internal resistance of the ce...

    Text Solution

    |

  13. The current, in a potentiometer wire of 100 cm length, is adjusted to ...

    Text Solution

    |

  14. In given figure, the potentiometer wire AB has a resistance of 5 Omeg...

    Text Solution

    |

  15. The wire of potentiometer has resistance 4 Omega and length 1m. It i...

    Text Solution

    |

  16. A potentiometer has a uniform wire of length 10m and resistance 5 Ome...

    Text Solution

    |

  17. A voltmeter has a resistance of 50 Omega is connected across a cell ...

    Text Solution

    |

  18. With a potentiometer null point were obtained at 140 cm and 180 cm w...

    Text Solution

    |

  19. In a potentiometer experiment it is found that no current passes throu...

    Text Solution

    |

  20. The potential gradient along the length of a uniform wire is 5 V/m. Th...

    Text Solution

    |