Two identical plates of different metals are joined to form a single p – McqOptions

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1.	Two identical plates of different metals are joined to form a single plate whose thickness is double the thickness of each plate. If the coefficients of conductivity of each plate are 2 and 3 respectively, then the conductivity of composite plate will be
A.	5
B.	2.4
C.	1.5
D.	1.2
Answer» C. 1.5

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