Home
Class 12
PHYSICS
The alloys constantan and manganin are u...

The alloys constantan and manganin are used to make standard resistance due to they have

A

high resistivity

B

low temperature coefficient of resistance

C

low resistivity

D

both 'a' and 'b'

Text Solution

Verified by Experts

The correct Answer is:
D
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

Why are constantan and manganin used for making standard resistances ?

(i) Define the term drift velocity . (ii) On the basis of electron drift , derive an expression for resistivity of a conductor in terms of number density of free electrons and relaxation time. On what factors does resistivity of a coductor depend ? (iii) Why alloys like constantan and manganin are used for making standard restores ?

Constantan wire is used in making standard resistances, because its :–

We use alloys for making standard resistors because they have

NIKITA PUBLICATION-CURRENT ELECTRICITY-Multiple Choice Questions
  1. A series combination of two resistors 1 Omega each is connected to a 1...

    Text Solution

    |

  2. Figure6.52 shows a balanced wheatstone network. Now, it is disturbed b...

    Text Solution

    |

  3. The alloys constantan and manganin are used to make standard resistanc...

    Text Solution

    |

  4. A battery of e mf 10 V and internal resistance 3Omega is connected to ...

    Text Solution

    |

  5. When a wire is stretched and its radius becomes r//2 then its resistan...

    Text Solution

    |

  6. In the circuit shown in the figure, the current drawn from the battery...

    Text Solution

    |

  7. A cell of e.m.f. 2V and internal resistance 0.5Omega is connected acro...

    Text Solution

    |

  8. The terminal potential difference for a cell is 8.5 V when current is ...

    Text Solution

    |

  9. A potentiometer wire has a length 10m and a resistance 20Omega. Its te...

    Text Solution

    |

  10. If length of a conductor is doubled by keeping volume constant, then w...

    Text Solution

    |

  11. Two resistances are joined in parallel whose equivolent resistance is ...

    Text Solution

    |

  12. In a metrebridge, copper strips are used to

    Text Solution

    |

  13. Current supplied by the cell in the adjoining figure is

    Text Solution

    |

  14. A wire of resistance 4 Omega is stretched to four times of its origina...

    Text Solution

    |

  15. A light bulb is rated at 100 W for a 220 V ac supply . The resistance ...

    Text Solution

    |

  16. In the circuit shown in figure, the value of R is

    Text Solution

    |

  17. When length of wire is increased by 10% , then increase in resistance ...

    Text Solution

    |

  18. For two wires, length ratio is 1:4, radius ratio is 1:2, specific resi...

    Text Solution

    |

  19. In potentiometer experiment, a cell is balanced by length 120cm. When ...

    Text Solution

    |

  20. S.I. unit of specific resistance is

    Text Solution

    |