Question

two resistance are of same material and are having same length if the ratio of their cross sectional area is 2:11 then what will be the ratio of their resistance ​

Answer 1

The resistance being inversely proportional to the cross sectional area,has the ratio for two resistors with given ratio of cross sectional areas in the opposite order. So it becomes 11:2.Ans..

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Answer 2

Explanation:

let-

Resistance 1

Length =L

Resistivity =p p=ohm meter

Area of cross section=2A

Resistance 2

Length =l

Resistivity =P

area of cross section=11A

whe have to find the ratio between their Resistance

so,

p L

2A

r = P l

11A