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Bimetal strips are used for...

Bimetal strips are used for

A

metal thermometer

B

opening or closing electrical circuits

C

thermomsats

D

All of the above

Text Solution

Verified by Experts

The correct Answer is:
D
When bimetallic strip is heated, the bress expands more than the steel the strip curves with the brass on the outside. If strip is cooled, it curves with the steel on outside and can be used in thermostat, as a switch or in metal thermometers.
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Knowledge Check

  • Bimetallic strip worked on the principal of ________

    A
    unequal expansion of solids
    B
    unequal contraction of solids
    C
    equal expansion of solids
    D
    both a and b

  • A Bimetallic strip is made of aluminium and steel (alpha_(Al)gtalpha_("steel")) on heating, the strip will

    A
    Remain straight
    B
    Get twisted
    C
    Bend with aluminium on concave side
    D
    Bend with steel on concave side

  • Casparian strips are found on radial and inner walls of

    A
    Stem endodermis
    B
    Root endodermis
    C
    Pericycle
    D
    Outer cortex

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