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One end of a metal rod is kept in a furn...

One end of a metal rod is kept in a furnace. In steady state, the temperature of the rod

A

may be variable

B

must be constant

C

must be variable

D

none of the above

Text Solution

Verified by Experts

(b) In steady state,
`(DeltaH)/(Deltat)=-Ka(d theta)/(dx)`
Here `(DeltaH)/(Deltat)=`constant `:.(Delta theta)/(dx)=`constant
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Knowledge Check

  • One end of a metal rod is kept in a furnce. In steady state, the temperature of the rod

    A
    increases
    B
    decreases
    C
    remains constant
    D
    is non uniform.

  • Assertion : Heat is supplied at constant rate from one end of a conducting rod. In steady state, temperature of all points of the rod becomes uniform. Reason : In steady state, temperature of rod does not increase.

    A
    If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.
    B
    If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
    C
    If Assertion is true, but the Reason is false.
    D
    If Assertion is false but the Reason is true.

  • Two ends of a rod of uniform cross sectional area are kept at temperature 3T_(0) and T_(0) as shown. Thermal conductivity of rod varies as k=alphaT , (where alpha is a constant and T is absolute temperature). In steady state, the temperature of the middle section of the rod is

    A
    `sqrt(7)T_(0)`
    B
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    C
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    D
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