The resistance of a strip of copper of rectangular cross section is 2 Ω.
A metal of resistivity twice that of a copper is coated on its upper surface to a thickness equal to that of copper strip.
The resistance of composite strip will be
A. 3 / 4 Ω.
B. 4 / 3 Ω.
C. 3 / 2 Ω.
D. 6 Ω.
Show Answer
Answer: B
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