Two metallic plate of equal thickness and coefficient thermal conductivity K1 and K2 put together face to face. A common plate is constructed. What is equivalent K?5
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Q: Two metallic plate of equal thickness and coefficient thermal conductivity K1 and K2 put together face to face. A common plate is constructed. What is equivalent K?
- 1K1k2/k1+k2false
- 22k1k2/k1+k2true
- 3K1+k2/k1k2false
- 4Nonefalse
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