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Characteristics of Particles of Matter

Three rods of...

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Three rods of same dimensions have thermal conductivities 3K

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Q. Three rods of same dimensions are arranged as shown in the figure. They have thermal conductivities

K_{1}, K_{1}

K_{3}

A

B

are maintained at different temperatures.For the heat to flow at the same along

A C B

A B

Q. Statement 1 : Equivalent thermal conductivity of two rods of same physical dimensions and having same thermal conductivity

(k)

connected to each other in parallel combination is equal to

k

.
Statement 2 : Equivalent thermal conductivity of two rods of same physical dimensions and having same thermal conductivity

(k)

, connected to each other in series combination is equal to

k

.

Q. Five rods of same dimensions are arranged as shown in the fig.They have thermal conductivities,

k_{1}, k_{2}, k_{5}, k_{4}

k_{3}

when points A and B are maintained at different temperatures. No heat flows through the central rod if:

Q. The rods of same dimensions are arranged as shown in the figure. They have thermal conductivities

K_{1}, K_{2}, K_{3}, K_{4} a n d K_{5}

. When points A and C maintained at different temperature, no heat flows through the central

Q. Three rods of the same dimensions have thermal conductivities

3 k, 2 k

k

. They are arranged as shown, with their ends at

100^{o} C, 50^{o} C,

0^{o} C

. The temperature of their junction is

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