Home
Class 12
PHYSICS
Constantan wire is used in making standa...

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

A

specific resistance is low

B

density is high

C

temperature coeff. of resistance is negligible

D

melting point is high

Text Solution

Verified by Experts

The correct Answer is:
C
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • CURRENT ELECTRICITY

    MOTION|Exercise EXERCISE -3 SECTION -A (PREVIOUS YEAR PROBLEMS NEET)|34 Videos

  • CURRENT ELECTRICITY

    MOTION|Exercise EXERCISE -3 SECTION -B (PREVIOUS YEAR PROBLEMS JEE MAIN)|42 Videos

  • CURRENT ELECTRICITY

    MOTION|Exercise EXERCISE -1 (OBJECTIVE PROBLEMS NEET)|64 Videos

  • CONSTRAINED MOTION

    MOTION|Exercise EXAMPLES|12 Videos

  • ELASTICITY

    MOTION|Exercise EXERCISE -3|60 Videos

Similar Questions

Explore conceptually related problems

Why are alloys used for making standard resistance coils?

Why are constantan and manganin used for making standard resistances ?

Knowledge Check

  • Constantan wire is used in making standard resistance because its

    A
    melting point is high
    B
    density is high
    C
    specific resistance is low
    D
    temperature coefficient of resistance is negligible

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

    A
    Low resistivity
    B
    High resistivity
    C
    Low temperature coefficient of resistance
    D
    Both (b) and (c)

  • We use alloys for making standard resistors because they have:

    A
    Low temperature coefficient of resistivity and high specific resistance
    B
    High temperature coefficient of resistivity and low specific resistance
    C
    Low temperature coefficient of resistivity and low specific resistance
    D
    High temperature coefficient of resistivity and high specific resistances

    • Similar Questions

    Explore conceptually related problems

    We use alloys for making standard resistors because they have

    Why are alloys, manganin and constantan used to make standard resistance coils ?

    Why manganin and constantan are used in standard resistance boxes?

    Draw a graph showing variation of resistivity with temperature for nichrome. Which property of nichrome is used to make standard resistance coils ?

    Constanton or manganin is widely used in wire wound standard resistors because of their

    Home
    Profile