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5) Two slabs of different materials have same length and area of cross-section. They are joined in series. If their thermal conductivities are 6 Wm–1 K–1 and 3 Wm–1 K–1, then their equivalent conductivity isOptions:a) 4 Wm–1 K–1b) 4.5 Wm–1 K–1c) 6 Wm–1 K–1d) 3 Wm–1 K–1 |
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Answer» 5) Two slabs of different materials have same length and area of cross-section. They are joined in series. If their thermal conductivities are 6 Wm–1 K–1 and 3 Wm–1 K–1, then their equivalent conductivity is Options: a) 4 Wm–1 K–1 b) 4.5 Wm–1 K–1 c) 6 Wm–1 K–1 d) 3 Wm–1 K–1 |
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