Home
Class 12
PHYSICS
Potentiometer is an ideal instrument bec...

Potentiometer is an ideal instrument because

A

it's resistance is low

B

at null position its resistance is zero

C

it's range is adjustable

D

it does not draw any current when measuring p.d

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • Electrical Instrument

    MOTION|Exercise EXERCISE -2|21 Videos
  • Electrical Instrument

    MOTION|Exercise EXERCISE -3|16 Videos
  • Electrical Instrument

    MOTION|Exercise EXERCISE -3|16 Videos
  • ELASTICITY AND THERMAL EXPANSION

    MOTION|Exercise Exercise - 4 (Level-II)|11 Videos
  • ELECTRO MAGNETIC INDUCTION

    MOTION|Exercise EXERCISE-4| Section B (Prevous Years Problems )|29 Videos
MOTION-Electrical Instrument -EXERCISE -1
  1. The length of a potentiometer wire is 10m and a potential difference o...

    Text Solution

    |

  2. As is the cross sectional area and rho is the specific resistance of a...

    Text Solution

    |

  3. Potentiometer is an ideal instrument because

    Text Solution

    |

  4. A potentiometer works on the principle that

    Text Solution

    |

  5. If the length of potentiometer wire is increased, then the accuracy in...

    Text Solution

    |

  6. In an ammeter calibration experiment, the potentiometer is used to mea...

    Text Solution

    |

  7. In potentiometer the potential gradient is –

    Text Solution

    |

  8. If the potentiometer wire having resistance rho ohm/ m and I amp. curr...

    Text Solution

    |

  9. Discuss the principle of potentiometer and explain the determination o...

    Text Solution

    |

  10. The material of wire of potentiometer is

    Text Solution

    |

  11. If the current in the primary circuit of a potentiometer wire of speci...

    Text Solution

    |

  12. The p.d. between A and B is balanced at 2.036 m length of the potentio...

    Text Solution

    |

  13. In the following figure, the p.d. between the points M and N is balanc...

    Text Solution

    |

  14. In the foregoing question, the balancing length between the p.d. betwe...

    Text Solution

    |

  15. In a potentiometer of one meter length , an unknown emf voltage source...

    Text Solution

    |

  16. The voltage across the two equal resistances connected in series get b...

    Text Solution

    |

  17. The quantity that cannot be measured by a potentiometer is….

    Text Solution

    |

  18. Correct diagram for the determination of internal resistance of a prim...

    Text Solution

    |

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

    Text Solution

    |

  20. A wire connected in the left gap of a meter bridge balance a 10Omega r...

    Text Solution

    |