A metal wire is cut into several pieces . The length and the radius of two pieces are in ratio 1:2 . Compare the resistance of A and the equivalent resistance when A and B Are connected in parallel

A metal wire is cut into several pieces . The length and the radius of

1.	A metal wire is cut into several pieces . The length and the radius of two pieces are in ratio 1:2 . Compare the resistance of A and the equivalent resistance when A and B Are connected in parallel
Answer» pieces of METAL are A and B.a/c to question, ratio of length of pieces A and B is 1 : 2 and ratio of radius of pieces A and B is 1 : 2. e.g., and we know, where R is resistance, l is length of wire and a is cross sectional area of wire. so, and here, we get, when both pieces are connected in parallel.then, =hence,

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A metal wire is cut into several pieces . The length and the radius of two pieces are in ratio 1:2 . Compare the resistance of A and the equivalent resistance when A and B Are connected in parallel

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