Thermal conductivity of inner core of radius 2 cm is k and of the outer one of radius 4 cm is 2k. Find the equivalent thermal conductivity between its two ends a and b(keq).

Thermal conductivity of inner core of radius 2 cm is k and of the oute

1.	Thermal conductivity of inner core of radius 2 cm is k and of the outer one of radius 4 cm is 2k. Find the equivalent thermal conductivity between its two ends a and b(keq).
Answer» Thermal conductivity of inner core of radius $2 cm$ is $k$ and of the outer one of radius $4 cm$ is $2 k$ . Find the equivalent thermal conductivity between its two ends $a$ and $b (k_{eq})$ .

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Thermal conductivity of inner core of radius 2 cm is k and of the outer one of radius 4 cm is 2k. Find the equivalent thermal conductivity between its two ends a and b(keq).

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