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1. |
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. | \(\frac{3}{4}\) Ω |
B. | \(\frac{4}{3}\) Ω |
C. | \(\frac{3}{2}\) Ω |
D. | 6 Ω |
Answer» C. \(\frac{3}{2}\) Ω | |