Question

A wire of given material having length i and area of cross-section A
has a resistance of 402. What would be the resistance of another wire
of the same material having length 1/2 and area of cross-section 2A?​

Answer 1

Answer:

R=100.5

Explanation:

area of cross section=2A R=1/A,R=402/2=201

and l=1/2

R=201/2=100.5

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