Two wires have their lenghts, diameters and resistivities,all in the r – McqOptions

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1.	Two wires have their lenghts, diameters and resistivities,all in the ratio 1:2. If the resistance of the thinner wire is 10 ohms, the resistance of the thicker wire is.
A.	5 ohms
B.	10 ohms
C.	20 ohms
D.	40 ohms
Answer» C. 20 ohms

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