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Two copper conductors have equallength. The cross-sectional area of oneconductor is four times that of theother. If the conductor having smallercross-sectional area has a resistance of40 ohms the resistance of other conduc-tor will be(a) 160 ohms . (6) 80 ohms(c) 20 ohms (d) 10 ohms |
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Answer» d Explanation: the CROSS SECTIONAL AREA is INVERSELY proportional to the resistance. |
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